Acenocoumarol
The metabolism of Acenocoumarol can be decreased when combined with Isoniazid.
Acetaminophen
The risk or severity of adverse effects can be increased when Isoniazid is combined with Acetaminophen.
Acetylcholine
The metabolism of Acetylcholine can be decreased when combined with Isoniazid.
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Acetylcholine Chloride
The metabolism of Acetylcholine can be decreased when combined with Isoniazid.
Ajmaline
The metabolism of Ajmaline can be decreased when combined with Isoniazid.
Alclometasone
The serum concentration of Isoniazid can be decreased when it is combined with Alclometasone.
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Aldosterone
The serum concentration of Isoniazid can be decreased when it is combined with Aldosterone.
Almotriptan
The metabolism of Almotriptan can be decreased when combined with Isoniazid.
Alogliptin
The metabolism of Alogliptin can be decreased when combined with Isoniazid.
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Alprenolol
The metabolism of Alprenolol can be decreased when combined with Isoniazid.
Aluminum
Aluminium can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Aluminum Hydroxide
Aluminum hydroxide can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
aluminum hydroxide, dried (USP)
Aluminum hydroxide can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Aluminum Magnesium Silicate
Almasilate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Ambrisentan
The metabolism of Ambrisentan can be decreased when combined with Isoniazid.
AMBROXOL ACEFYLLINATE
The serum concentration of Ambroxol acefyllinate can be increased when it is combined with Isoniazid.
Ambroxol-Theophylline-7-Acetate
The serum concentration of Ambroxol acefyllinate can be increased when it is combined with Isoniazid.
Amcinonide
The serum concentration of Isoniazid can be decreased when it is combined with Amcinonide.
Aminophylline
The serum concentration of Aminophylline can be increased when it is combined with Isoniazid.
Aminopyrine
The metabolism of Aminophenazone can be decreased when combined with Isoniazid.
Amiodarone
The metabolism of Amiodarone can be decreased when combined with Isoniazid.
Amitriptyline
The metabolism of Amitriptyline can be decreased when combined with Isoniazid.
Amodiaquine
The serum concentration of Amodiaquine can be increased when it is combined with Isoniazid.
Amoxapine
The metabolism of Amoxapine can be decreased when combined with Isoniazid.
Amoxicillin
The metabolism of Amoxicillin can be decreased when combined with Isoniazid.
Amoxicillin Anhydrous
The metabolism of Amoxicillin can be decreased when combined with Isoniazid.
Amphetamine
The metabolism of Amphetamine can be decreased when combined with Isoniazid.
Amprenavir
The metabolism of Amprenavir can be decreased when combined with Isoniazid.
Amsacrine
The metabolism of Amsacrine can be decreased when combined with Isoniazid.
Androstenedione
The serum concentration of Isoniazid can be decreased when it is combined with Androstenedione.
Aniline
The metabolism of Aniline can be decreased when combined with Isoniazid.
Antipyrine
The metabolism of Antipyrine can be decreased when combined with Isoniazid.
Apixaban
The metabolism of Apixaban can be decreased when combined with Isoniazid.
Aprepitant
The metabolism of Aprepitant can be decreased when combined with Isoniazid.
Aprindine
The metabolism of Aprindine can be decreased when combined with Isoniazid.
Arformoterol
The metabolism of Arformoterol can be decreased when combined with Isoniazid.
Aripiprazole
The serum concentration of Aripiprazole can be increased when it is combined with Isoniazid.
Artemether
The metabolism of Artemether can be decreased when combined with Isoniazid.
Artesunate
The serum concentration of the active metabolites of Artesunate can be reduced when Artesunate is used in combination with Isoniazid resulting in a loss in efficacy.
Astemizole
The metabolism of Astemizole can be decreased when combined with Isoniazid.
Atomoxetine
The metabolism of Atomoxetine can be decreased when combined with Isoniazid.
Atorvastatin
The risk or severity of adverse effects can be increased when Isoniazid is combined with Atorvastatin.
Axitinib
The metabolism of Axitinib can be decreased when combined with Isoniazid.
Azelastine
The metabolism of Azelastine can be decreased when combined with Isoniazid.
BCG Vaccine
The therapeutic efficacy of BCG vaccine can be decreased when used in combination with Isoniazid.
Beclomethasone Dipropionate
The serum concentration of Isoniazid can be decreased when it is combined with Beclomethasone dipropionate.
Benztropine
The metabolism of Benzatropine can be decreased when combined with Isoniazid.
Benzyl Alcohol
The metabolism of Benzyl alcohol can be decreased when combined with Isoniazid.
Bepridil
The metabolism of Bepridil can be decreased when combined with Isoniazid.
Betamethasone
The serum concentration of Isoniazid can be decreased when it is combined with Betamethasone.
Betaxolol
The metabolism of Betaxolol can be decreased when combined with Isoniazid.
Bismuth Subcitrate
Bismuth Subcitrate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Bisoprolol
The metabolism of Bisoprolol can be decreased when combined with Isoniazid.
Bortezomib
The metabolism of Bortezomib can be decreased when combined with Isoniazid.
Bosutinib
The serum concentration of Bosutinib can be increased when it is combined with Isoniazid.
Bosutinib monohydrate
The serum concentration of Bosutinib can be increased when it is combined with Isoniazid.
Brexpiprazole
The serum concentration of Brexpiprazole can be increased when it is combined with Isoniazid.
Brivaracetam
The metabolism of Brivaracetam can be decreased when combined with Isoniazid.
Bromazepam
The metabolism of Bromazepam can be decreased when combined with Isoniazid.
Bromocriptine
The risk or severity of adverse effects can be increased when Bromocriptine is combined with Isoniazid.
Brompheniramine
The metabolism of Brompheniramine can be decreased when combined with Isoniazid.
Budesonide
The serum concentration of Isoniazid can be decreased when it is combined with Budesonide.
Bupivacaine
The metabolism of Bupivacaine can be decreased when combined with Isoniazid.
Buprenorphine
The metabolism of Buprenorphine can be decreased when combined with Isoniazid.
Bupropion
The metabolism of Bupropion can be decreased when combined with Isoniazid.
Buspirone
The metabolism of Buspirone can be decreased when combined with Isoniazid.
Cabergoline
The risk or severity of adverse effects can be increased when Cabergoline is combined with Isoniazid.
Caffeine
The metabolism of Caffeine can be decreased when combined with Isoniazid.
Calcium Carbonate
Calcium Carbonate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
CALCIUM CARBONATE, PRECIPITATED
Calcium Carbonate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Cannabidiol
The metabolism of Cannabidiol can be decreased when combined with Isoniazid.
Capsaicin
The metabolism of Capsaicin can be decreased when combined with Isoniazid.
Captopril
The metabolism of Captopril can be decreased when combined with Isoniazid.
Carbamazepine
The metabolism of Carbamazepine can be decreased when combined with Isoniazid.
Carbinoxamine
The metabolism of Carbinoxamine can be decreased when combined with Isoniazid.
Cariprazine
The metabolism of Cariprazine can be decreased when combined with Isoniazid.
Carisoprodol
The metabolism of Carisoprodol can be decreased when combined with Isoniazid.
Carteolol
The metabolism of Carteolol can be decreased when combined with Isoniazid.
Carvedilol
The metabolism of Carvedilol can be decreased when combined with Isoniazid.
Cephalexin
The metabolism of Cephalexin can be decreased when combined with Isoniazid.
CEPHALEXIN ANHYDROUS
The metabolism of Cephalexin can be decreased when combined with Isoniazid.
Cerivastatin
The serum concentration of Cerivastatin can be increased when it is combined with Isoniazid.
Cevimeline
The metabolism of Cevimeline can be decreased when combined with Isoniazid.
Chloramphenicol
The metabolism of Chloramphenicol can be decreased when combined with Isoniazid.
Chlordiazepoxide
The metabolism of Chlordiazepoxide can be decreased when combined with Isoniazid.
Chlormethiazole
The metabolism of clomethiazole can be decreased when combined with Isoniazid.
Chloroquine
The metabolism of Chloroquine can be decreased when combined with Isoniazid.
Chlorpheniramine
The metabolism of Chlorphenamine can be decreased when combined with Isoniazid.
CHLORPHENIRAMINE POLISTIREX
The metabolism of Chlorphenamine can be decreased when combined with Isoniazid.
Chlorpromazine
The metabolism of Chlorpromazine can be decreased when combined with Isoniazid.
Chlorpropamide
The metabolism of Chlorpropamide can be decreased when combined with Isoniazid.
Chlorzoxazone
The metabolism of Chlorzoxazone can be decreased when combined with Isoniazid.
Ciclesonide
The serum concentration of Isoniazid can be decreased when it is combined with Ciclesonide.
Cilostazol
The serum concentration of Cilostazol can be increased when it is combined with Isoniazid.
Cinnarizine
The metabolism of Cinnarizine can be decreased when combined with Isoniazid.
Cisapride
The metabolism of Cisapride can be decreased when combined with Isoniazid.
Citalopram
The serum concentration of Citalopram can be increased when it is combined with Isoniazid.
Clarithromycin
The metabolism of Clarithromycin can be decreased when combined with Isoniazid.
Clevidipine
The metabolism of Clevidipine can be decreased when combined with Isoniazid.
Clevidipine butyrate
The metabolism of Clevidipine can be decreased when combined with Isoniazid.
Clobazam
The metabolism of Clobazam can be decreased when combined with Isoniazid.
Clobetasol
The serum concentration of Isoniazid can be decreased when it is combined with Clobetasol.
Clobetasol Propionate
The serum concentration of Isoniazid can be decreased when it is combined with Clobetasol propionate.
Clobetasone
The serum concentration of Isoniazid can be decreased when it is combined with Clobetasone.
Clocortolone
The serum concentration of Isoniazid can be decreased when it is combined with Clocortolone.
Clofezone
The metabolism of Rabeprazole can be decreased when combined with Isoniazid.
Clomipramine
The metabolism of Clomipramine can be decreased when combined with Isoniazid.
Clonidine
The metabolism of Clonidine can be decreased when combined with Isoniazid.
Clopidogrel
The serum concentration of the active metabolites of Clopidogrel can be reduced when Clopidogrel is used in combination with Isoniazid resulting in a loss in efficacy.
Clotiazepam
The metabolism of Clotiazepam can be decreased when combined with Isoniazid.
Clotrimazole
The metabolism of Isoniazid can be decreased when combined with Clotrimazole.
Clozapine
The metabolism of Clozapine can be decreased when combined with Isoniazid.
Codeine
The therapeutic efficacy of Codeine can be decreased when used in combination with Isoniazid.
Codeine Anhydrous
The therapeutic efficacy of Codeine can be decreased when used in combination with Isoniazid.
CODEINE POLISTIREX
The therapeutic efficacy of Codeine can be decreased when used in combination with Isoniazid.
Cortisone Acetate
The serum concentration of Isoniazid can be decreased when it is combined with Cortisone acetate.
Cyclobenzaprine
The metabolism of Cyclobenzaprine can be decreased when combined with Isoniazid.
Cyclophosphamide
The metabolism of Cyclophosphamide can be decreased when combined with Isoniazid.
Cyclophosphamide Anhydrous
The metabolism of Cyclophosphamide can be decreased when combined with Isoniazid.
Cycloserine
The risk or severity of adverse effects can be increased when Isoniazid is combined with Cycloserine.
Cyproterone Acetate
The serum concentration of Isoniazid can be decreased when it is combined with Cyproterone acetate.
Dacarbazine
The metabolism of Dacarbazine can be decreased when combined with Isoniazid.
Dalfampridine
The metabolism of Dalfampridine can be decreased when combined with Isoniazid.
Dapagliflozin
The metabolism of Dapagliflozin can be decreased when combined with Isoniazid.
Dapsone
The metabolism of Dapsone can be decreased when combined with Isoniazid.
Darifenacin
The metabolism of Darifenacin can be decreased when combined with Isoniazid.
Dasabuvir
The metabolism of Dasabuvir can be decreased when combined with Isoniazid.
Debrisoquin
The metabolism of Debrisoquin can be decreased when combined with Isoniazid.
Deflazacort
The serum concentration of Isoniazid can be decreased when it is combined with Deflazacort.
Delavirdine
The metabolism of Delavirdine can be decreased when combined with Isoniazid.
Desipramine
The metabolism of Desipramine can be decreased when combined with Isoniazid.
Desonide
The serum concentration of Isoniazid can be decreased when it is combined with Desonide.
Desoximetasone
The serum concentration of Isoniazid can be decreased when it is combined with Desoximetasone.
Desoxycorticosterone acetate
The serum concentration of Isoniazid can be decreased when it is combined with Desoxycorticosterone acetate.
Desoxycorticosterone Pivalate
The serum concentration of Isoniazid can be decreased when it is combined with Desoxycorticosterone Pivalate.
Deutetrabenazine
The metabolism of Deutetrabenazine can be decreased when combined with Isoniazid.
Dexamethasone
The serum concentration of Isoniazid can be decreased when it is combined with Dexamethasone.
Dexchlorpheniramine maleate
The metabolism of Dexchlorpheniramine maleate can be decreased when combined with Isoniazid.
Dexfenfluramine
The metabolism of Dexfenfluramine can be decreased when combined with Isoniazid.
Dexlansoprazole
The metabolism of Dexlansoprazole can be decreased when combined with Isoniazid.
Dexmedetomidine
The metabolism of Dexmedetomidine can be decreased when combined with Isoniazid.
Dexmethylphenidate
The metabolism of Dexmethylphenidate can be decreased when combined with Isoniazid.
Dextroamphetamine
The metabolism of Dextroamphetamine can be decreased when combined with Isoniazid.
Dextromethorphan
The metabolism of Dextromethorphan can be decreased when combined with Isoniazid.
Diazepam
The metabolism of Diazepam can be decreased when combined with Isoniazid.
Diclofenac
The metabolism of Diclofenac can be decreased when combined with Isoniazid.
Diflorasone
The serum concentration of Isoniazid can be decreased when it is combined with Diflorasone.
Diflucortolone
The serum concentration of Isoniazid can be decreased when it is combined with Difluocortolone.
Difluprednate
The serum concentration of Isoniazid can be decreased when it is combined with Difluprednate.
Dihydrocodeine
The metabolism of Dihydrocodeine can be decreased when combined with Isoniazid.
Dihydroergotamine
The risk or severity of adverse effects can be increased when Dihydroergotamine is combined with Isoniazid.
Diltiazem
The metabolism of Diltiazem can be decreased when combined with Isoniazid.
Diphenhydramine
The metabolism of Diphenhydramine can be decreased when combined with Isoniazid.
Disulfiram
The risk or severity of adverse effects can be increased when Disulfiram is combined with Isoniazid.
Dolasetron
The metabolism of Dolasetron can be decreased when combined with Isoniazid.
Domperidone
The metabolism of Domperidone can be decreased when combined with Isoniazid.
Donepezil
The metabolism of Donepezil can be decreased when combined with Isoniazid.
Dopamine
The metabolism of Dopamine can be decreased when combined with Isoniazid.
Doxazosin
The metabolism of Doxazosin can be decreased when combined with Isoniazid.
Doxepin
The metabolism of Doxepin can be decreased when combined with Isoniazid.
Doxorubicin
The metabolism of Doxorubicin can be decreased when combined with Isoniazid.
Doxorubicin Hydrochloride
The metabolism of Doxorubicin can be decreased when combined with Isoniazid.
Dronedarone
The metabolism of Dronedarone can be decreased when combined with Isoniazid.
Duloxetine
The metabolism of Duloxetine can be decreased when combined with Isoniazid.
Dyphylline
The serum concentration of Dyphylline can be increased when it is combined with Isoniazid.
Eletriptan
The metabolism of Eletriptan can be decreased when combined with Isoniazid.
Eliglustat
The serum concentration of Eliglustat can be increased when it is combined with Isoniazid.
Enasidenib
The metabolism of Enasidenib can be decreased when combined with Isoniazid.
Encainide
The metabolism of Encainide can be decreased when combined with Isoniazid.
Enflurane
The metabolism of Enflurane can be decreased when combined with Isoniazid.
Enfuvirtide
The metabolism of Enfuvirtide can be decreased when combined with Isoniazid.
Epinastine
The metabolism of Epinastine can be decreased when combined with Isoniazid.
Ergonovine
The risk or severity of adverse effects can be increased when Ergonovine is combined with Isoniazid.
Ergotamine
The risk or severity of adverse effects can be increased when Ergotamine is combined with Isoniazid.
Erlotinib
The metabolism of Erlotinib can be decreased when combined with Isoniazid.
Escitalopram
The metabolism of Escitalopram can be decreased when combined with Isoniazid.
Esomeprazole
The metabolism of Esomeprazole can be decreased when combined with Isoniazid.
Estradiol
The metabolism of Estradiol can be decreased when combined with Isoniazid.
Estradiol 3-Benzoate
The metabolism of Estradiol benzoate can be decreased when combined with Isoniazid.
Estradiol acetate
The metabolism of Estradiol acetate can be decreased when combined with Isoniazid.
Estradiol Cypionate
The metabolism of Estradiol cypionate can be decreased when combined with Isoniazid.
Estradiol Valerate
The metabolism of Estradiol valerate can be decreased when combined with Isoniazid.
Estrone
The serum concentration of Isoniazid can be decreased when it is combined with Estrone.
Ethanol
The metabolism of Ethanol can be decreased when combined with Isoniazid.
Ethanolamine Oleate
The metabolism of Ethanolamine Oleate can be decreased when combined with Isoniazid.
Ethionamide
The serum concentration of Isoniazid can be increased when it is combined with Ethionamide.
Ethosuximide
The metabolism of Ethosuximide can be decreased when combined with Isoniazid.
Ethylmorphine
The metabolism of Ethylmorphine can be decreased when combined with Isoniazid.
Etoposide
The metabolism of Etoposide can be decreased when combined with Isoniazid.
Etoricoxib
The metabolism of Etoricoxib can be decreased when combined with Isoniazid.
Etravirine
The metabolism of Etravirine can be decreased when combined with Isoniazid.
Famotidine
The metabolism of Famotidine can be decreased when combined with Isoniazid.
Felbamate
The metabolism of Felbamate can be decreased when combined with Isoniazid.
Fesoterodine
The serum concentration of the active metabolites of Fesoterodine can be increased when Fesoterodine is used in combination with Isoniazid.
Fingolimod
The metabolism of Fingolimod can be decreased when combined with Isoniazid.
Flecainide
The metabolism of Flecainide can be decreased when combined with Isoniazid.
Fludrocortisone
The serum concentration of Isoniazid can be decreased when it is combined with Fludrocortisone.
Flumethasone
The serum concentration of Isoniazid can be decreased when it is combined with Flumethasone.
Flunarizine
The metabolism of Flunarizine can be decreased when combined with Isoniazid.
Flunisolide
The serum concentration of Isoniazid can be decreased when it is combined with Flunisolide.
Flunisolide Anhydrous (obsolete)
The serum concentration of Isoniazid can be decreased when it is combined with Flunisolide.
Flunitrazepam
The metabolism of Flunitrazepam can be decreased when combined with Isoniazid.
Fluocinolone Acetonide
The serum concentration of Isoniazid can be decreased when it is combined with Fluocinolone Acetonide.
Fluocinonide
The serum concentration of Isoniazid can be decreased when it is combined with Fluocinonide.
Fluocortolone
The serum concentration of Isoniazid can be decreased when it is combined with Fluocortolone.
Fluorometholone
The serum concentration of Isoniazid can be decreased when it is combined with Fluorometholone.
Fluoxetine
The metabolism of Fluoxetine can be decreased when combined with Isoniazid.
Fluphenazine
The metabolism of Fluphenazine can be decreased when combined with Isoniazid.
FLUPREDNIDENE
The serum concentration of Isoniazid can be decreased when it is combined with Fluprednidene.
Fluprednisolone
The serum concentration of Isoniazid can be decreased when it is combined with Fluprednisolone.
Flurandrenolide
The serum concentration of Isoniazid can be decreased when it is combined with Flurandrenolide.
Flutamide
The metabolism of Flutamide can be decreased when combined with Isoniazid.
Fluticasone Furoate
The serum concentration of Isoniazid can be decreased when it is combined with Fluticasone furoate.
Fluticasone propionate
The serum concentration of Isoniazid can be decreased when it is combined with Fluticasone propionate.
Fluvastatin
The serum concentration of Fluvastatin can be increased when it is combined with Isoniazid.
Fluvoxamine
The metabolism of Fluvoxamine can be decreased when combined with Isoniazid.
Folate
The metabolism of Folic Acid can be decreased when combined with Isoniazid.
Folic Acid
The metabolism of Folic Acid can be decreased when combined with Isoniazid.
Formestane
The serum concentration of Isoniazid can be decreased when it is combined with Formestane.
Formoterol
The metabolism of Formoterol can be decreased when combined with Isoniazid.
Fosphenytoin
The serum concentration of Fosphenytoin can be increased when it is combined with Isoniazid.
Galantamine
The metabolism of Galantamine can be decreased when combined with Isoniazid.
Gefitinib
The metabolism of Gefitinib can be decreased when combined with Isoniazid.
Gliclazide
The metabolism of Gliclazide can be decreased when combined with Isoniazid.
Glucosamine
The metabolism of Glucosamine can be decreased when combined with Isoniazid.
Glyburide
The metabolism of Glyburide can be decreased when combined with Isoniazid.
Granisetron
The metabolism of Granisetron can be decreased when combined with Isoniazid.
Guanfacine
The metabolism of Guanfacine can be decreased when combined with Isoniazid.
Halcinonide
The serum concentration of Isoniazid can be decreased when it is combined with Halcinonide.
Halobetasol
The serum concentration of Isoniazid can be decreased when it is combined with Ulobetasol.
Halofantrine
The metabolism of Halofantrine can be decreased when combined with Isoniazid.
Haloperidol
The metabolism of Haloperidol can be decreased when combined with Isoniazid.
Halothane
The metabolism of Halothane can be decreased when combined with Isoniazid.
Hexobarbital
The metabolism of Hexobarbital can be decreased when combined with Isoniazid.
Hydrocodone
The metabolism of Hydrocodone can be decreased when combined with Isoniazid.
HYDROCODONE POLISTIREX
The metabolism of Hydrocodone can be decreased when combined with Isoniazid.
Hydrocortisone
The serum concentration of Isoniazid can be decreased when it is combined with Hydrocortisone.
Hydromorphone
The metabolism of Hydromorphone can be decreased when combined with Isoniazid.
Hydrotalcite
Hydrotalcite can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Ibrutinib
The serum concentration of Ibrutinib can be increased when it is combined with Isoniazid.
Ibuprofen
The metabolism of Ibuprofen can be decreased when combined with Isoniazid.
Idarubicin
The metabolism of Idarubicin can be decreased when combined with Isoniazid.
Ifosfamide
The metabolism of Ifosfamide can be decreased when combined with Isoniazid.
Iloperidone
The metabolism of Iloperidone can be decreased when combined with Isoniazid.
Imatinib
The metabolism of Imatinib can be decreased when combined with Isoniazid.
Imipramine
The metabolism of Imipramine can be decreased when combined with Isoniazid.
Indomethacin
The metabolism of Indomethacin can be decreased when combined with Isoniazid.
Ipratropium Bromide
The metabolism of Ipratropium bromide can be decreased when combined with Isoniazid.
Ipratropium Bromide Anhydrous
The metabolism of Ipratropium bromide can be decreased when combined with Isoniazid.
Isoflurane
The metabolism of Isoflurane can be decreased when combined with Isoniazid.
Itraconazole
The serum concentration of Itraconazole can be decreased when it is combined with Isoniazid.
Ixazomib
The metabolism of Ixazomib can be decreased when combined with Isoniazid.
Ketoconazole
The serum concentration of Ketoconazole can be decreased when it is combined with Isoniazid.
Labetalol
The metabolism of Labetalol can be decreased when combined with Isoniazid.
Lansoprazole
The metabolism of Lansoprazole can be decreased when combined with Isoniazid.
Lapatinib
The metabolism of Lapatinib can be decreased when combined with Isoniazid.
Letermovir
The metabolism of Letermovir can be decreased when combined with Isoniazid.
Levodopa
The therapeutic efficacy of Levodopa can be decreased when used in combination with Isoniazid.
Levomilnacipran
The metabolism of Levomilnacipran can be decreased when combined with Isoniazid.
Lidocaine
The metabolism of Lidocaine can be decreased when combined with Isoniazid.
Lisuride
The risk or severity of adverse effects can be increased when Lisuride is combined with Isoniazid.
Lomustine
The metabolism of Lomustine can be decreased when combined with Isoniazid.
Loperamide
The metabolism of Loperamide can be decreased when combined with Isoniazid.
Loratadine
The metabolism of Loratadine can be decreased when combined with Isoniazid.
Lorcaserin
The metabolism of Lorcaserin can be decreased when combined with Isoniazid.
Loteprednol
The serum concentration of Isoniazid can be decreased when it is combined with Loteprednol.
Lovastatin
The serum concentration of Lovastatin can be increased when it is combined with Isoniazid.
Macitentan
The metabolism of Macitentan can be decreased when combined with Isoniazid.
Magaldrate
Magaldrate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Magnesium Hydroxide
Magnesium hydroxide can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Magnesium Oxide
Magnesium oxide can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Magnesium Trisilicate
Magnesium Trisilicate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Maprotiline
The metabolism of Maprotiline can be decreased when combined with Isoniazid.
Medrysone
The serum concentration of Isoniazid can be decreased when it is combined with Medrysone.
Melatonin
The metabolism of Melatonin can be decreased when combined with Isoniazid.
Meperidine
The metabolism of Pethidine can be decreased when combined with Isoniazid.
Mephenytoin
The metabolism of Mephenytoin can be decreased when combined with Isoniazid.
Mephobarbital
The metabolism of Methylphenobarbital can be decreased when combined with Isoniazid.
Meprobamate
The metabolism of Meprobamate can be decreased when combined with Isoniazid.
Mequitazine
The metabolism of Mequitazine can be decreased when combined with Isoniazid.
Mesoridazine
The metabolism of Mesoridazine can be decreased when combined with Isoniazid.
Metergoline
The risk or severity of adverse effects can be increased when Metergoline is combined with Isoniazid.
Methadone
The metabolism of Methadone can be decreased when combined with Isoniazid.
Methamphetamine
The metabolism of Methamphetamine can be decreased when combined with Isoniazid.
Methotrimeprazine
The metabolism of Methotrimeprazine can be decreased when combined with Isoniazid.
Methoxyflurane
The metabolism of Methoxyflurane can be decreased when combined with Isoniazid.
Methsuximide
The metabolism of Methsuximide can be decreased when combined with Isoniazid.
Methylergonovine
The risk or severity of adverse effects can be increased when Methylergometrine is combined with Isoniazid.
Methylphenidate
The metabolism of Methylphenidate can be decreased when combined with Isoniazid.
Methylprednisolone
The serum concentration of Isoniazid can be decreased when it is combined with Methylprednisolone.
Methyprylon
The metabolism of Methyprylon can be decreased when combined with Isoniazid.
Methysergide
The risk or severity of adverse effects can be increased when Methysergide is combined with Isoniazid.
Metoclopramide
The metabolism of Metoclopramide can be decreased when combined with Isoniazid.
Metoprolol
The serum concentration of Metoprolol can be increased when it is combined with Isoniazid.
Mexiletine
The metabolism of Mexiletine can be decreased when combined with Isoniazid.
Mianserin
The metabolism of Mianserin can be decreased when combined with Isoniazid.
Minaprine
The metabolism of Minaprine can be decreased when combined with Isoniazid.
Mirabegron
The metabolism of Mirabegron can be decreased when combined with Isoniazid.
Mirtazapine
The metabolism of Mirtazapine can be decreased when combined with Isoniazid.
Mitoxantrone
The metabolism of Mitoxantrone can be decreased when combined with Isoniazid.
Moclobemide
The metabolism of Moclobemide can be decreased when combined with Isoniazid.
Mometasone
The serum concentration of Isoniazid can be decreased when it is combined with Mometasone.
Morphine
The metabolism of Morphine can be decreased when combined with Isoniazid.
Nateglinide
The metabolism of Nateglinide can be decreased when combined with Isoniazid.
Nebivolol
The serum concentration of Nebivolol can be increased when it is combined with Isoniazid.
Nefazodone
The metabolism of Nefazodone can be decreased when combined with Isoniazid.
Nelfinavir
The metabolism of Nelfinavir can be decreased when combined with Isoniazid.
Netupitant
The metabolism of Netupitant can be decreased when combined with Isoniazid.
Nevirapine
The metabolism of Nevirapine can be decreased when combined with Isoniazid.
Nicardipine
The metabolism of Nicardipine can be decreased when combined with Isoniazid.
Nicergoline
The risk or severity of adverse effects can be increased when Nicergoline is combined with Isoniazid.
Nicotine
The metabolism of Nicotine can be decreased when combined with Isoniazid.
Nicotine Polacrilex
The metabolism of Nicotine can be decreased when combined with Isoniazid.
Nifedipine
The metabolism of Nifedipine can be decreased when combined with Isoniazid.
Nilutamide
The metabolism of Nilutamide can be decreased when combined with Isoniazid.
Nilvadipine
The metabolism of Nilvadipine can be decreased when combined with Isoniazid.
Nitrofurazone
The metabolism of Nitrofural can be decreased when combined with Isoniazid.
Nortriptyline
The metabolism of Nortriptyline can be decreased when combined with Isoniazid.
Olanzapine
The metabolism of Olanzapine can be decreased when combined with Isoniazid.
Omeprazole
The metabolism of Omeprazole can be decreased when combined with Isoniazid.
Ondansetron
The metabolism of Ondansetron can be decreased when combined with Isoniazid.
Opium
The metabolism of Opium can be decreased when combined with Isoniazid.
Ospemifene
The metabolism of Ospemifene can be decreased when combined with Isoniazid.
Oxaliplatin
The metabolism of Oxaliplatin can be decreased when combined with Isoniazid.
Oxiconazole
The metabolism of Oxiconazole can be decreased when combined with Isoniazid.
Oxycodone
The metabolism of Oxycodone can be decreased when combined with Isoniazid.
Oxymorphone
The metabolism of Oxymorphone can be decreased when combined with Isoniazid.
Palonosetron
The metabolism of Palonosetron can be decreased when combined with Isoniazid.
Pantoprazole
The metabolism of Pantoprazole can be decreased when combined with Isoniazid.
Paramethadione
The metabolism of Paramethadione can be decreased when combined with Isoniazid.
Paramethasone
The serum concentration of Isoniazid can be decreased when it is combined with Paramethasone.
Paregoric
The metabolism of Morphine can be decreased when combined with Isoniazid.
Paroxetine
The metabolism of Paroxetine can be decreased when combined with Isoniazid.
Pazopanib
The metabolism of Pazopanib can be decreased when combined with Isoniazid.
Pentamidine
The metabolism of Pentamidine can be decreased when combined with Isoniazid.
Pentobarbital
The metabolism of Pentobarbital can be decreased when combined with Isoniazid.
Pergolide
The risk or severity of adverse effects can be increased when Pergolide is combined with Isoniazid.
Perhexiline
The metabolism of Perhexiline can be decreased when combined with Isoniazid.
Perphenazine
The metabolism of Perphenazine can be decreased when combined with Isoniazid.
Phenacetin
The metabolism of Phenacetin can be decreased when combined with Isoniazid.
Phenformin
The metabolism of Phenformin can be decreased when combined with Isoniazid.
Phenobarbital
The metabolism of Phenobarbital can be decreased when combined with Isoniazid.
Phenytoin
The serum concentration of Phenytoin can be increased when it is combined with Isoniazid.
Picosulfuric Acid
The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Isoniazid.
Pilocarpine
The metabolism of Pilocarpine can be decreased when combined with Isoniazid.
Pindolol
The metabolism of Pindolol can be decreased when combined with Isoniazid.
Piperazine
The metabolism of Piperazine can be decreased when combined with Isoniazid.
Pipothiazine
The metabolism of Pipotiazine can be decreased when combined with Isoniazid.
Pitavastatin
The serum concentration of Pitavastatin can be increased when it is combined with Isoniazid.
Podofilox
The metabolism of Podofilox can be decreased when combined with Isoniazid.
Ponatinib
The metabolism of Ponatinib can be decreased when combined with Isoniazid.
Prasterone
The serum concentration of Isoniazid can be decreased when it is combined with Prasterone.
Prasugrel
The metabolism of Prasugrel can be decreased when combined with Isoniazid.
Pravastatin
The serum concentration of Pravastatin can be increased when it is combined with Isoniazid.
Praziquantel
The metabolism of Praziquantel can be decreased when combined with Isoniazid.
Prednicarbate
The serum concentration of Isoniazid can be decreased when it is combined with Prednicarbate.
Prednisolone
The serum concentration of Isoniazid can be decreased when it is combined with Prednisolone.
Prednisone
The serum concentration of Isoniazid can be decreased when it is combined with Prednisone.
Pregnenolone
The serum concentration of Isoniazid can be decreased when it is combined with Pregnenolone.
Primidone
The metabolism of Primidone can be decreased when combined with Isoniazid.
Procainamide
The metabolism of Procainamide can be decreased when combined with Isoniazid.
Prochlorperazine
The metabolism of Prochlorperazine can be decreased when combined with Isoniazid.
Progesterone
The metabolism of Progesterone can be decreased when combined with Isoniazid.
Proguanil
The metabolism of Proguanil can be decreased when combined with Isoniazid.
Promazine
The metabolism of Promazine can be decreased when combined with Isoniazid.
Promethazine
The metabolism of Promethazine can be decreased when combined with Isoniazid.
Propafenone
The serum concentration of Isoniazid can be increased when it is combined with Propafenone.
Propofol
The metabolism of Propofol can be decreased when combined with Isoniazid.
Propranolol
The metabolism of Propranolol can be decreased when combined with Isoniazid.
Protriptyline
The metabolism of Protriptyline can be decreased when combined with Isoniazid.
Pseudoephedrine
The metabolism of Pseudoephedrine can be decreased when combined with Isoniazid.
Quazepam
The metabolism of Quazepam can be decreased when combined with Isoniazid.
Quetiapine
The metabolism of Quetiapine can be decreased when combined with Isoniazid.
Quetiapine fumarate
The metabolism of Quetiapine can be decreased when combined with Isoniazid.
Quinidine
The metabolism of Quinidine can be decreased when combined with Isoniazid.
Quinine
The metabolism of Quinine can be decreased when combined with Isoniazid.
Rabeprazole
The metabolism of Rabeprazole can be decreased when combined with Isoniazid.
Ramelteon
The metabolism of Ramelteon can be decreased when combined with Isoniazid.
Ranitidine
The metabolism of Ranitidine can be decreased when combined with Isoniazid.
Remoxipride
The metabolism of Remoxipride can be decreased when combined with Isoniazid.
Rifabutin
Rifabutin may increase the hepatotoxic activities of Isoniazid.
Rifampin
Rifampicin may increase the hepatotoxic activities of Isoniazid.
Rifapentine
Rifapentine may increase the hepatotoxic activities of Isoniazid.
Rifaximin
Rifaximin may increase the hepatotoxic activities of Isoniazid.
Rilpivirine
The serum concentration of Rilpivirine can be increased when it is combined with Isoniazid.
Rimexolone
The serum concentration of Isoniazid can be decreased when it is combined with Rimexolone.
Risperidone
The metabolism of Risperidone can be decreased when combined with Isoniazid.
Ritonavir
The metabolism of Ritonavir can be decreased when combined with Isoniazid.
Romidepsin
The metabolism of Romidepsin can be decreased when combined with Isoniazid.
Ropivacaine
The metabolism of Ropivacaine can be decreased when combined with Isoniazid.
Rosuvastatin
The serum concentration of Rosuvastatin can be increased when it is combined with Isoniazid.
Rotigotine
The metabolism of Rotigotine can be decreased when combined with Isoniazid.
Rucaparib
The metabolism of Rucaparib can be decreased when combined with Isoniazid.
Saquinavir
The metabolism of Saquinavir can be decreased when combined with Isoniazid.
Saquinavir Mesylate
The metabolism of Saquinavir can be decreased when combined with Isoniazid.
Selegiline
The metabolism of Selegiline can be decreased when combined with Isoniazid.
Sertindole
The metabolism of Sertindole can be decreased when combined with Isoniazid.
Sertraline
The metabolism of Sertraline can be decreased when combined with Isoniazid.
Sevoflurane
The metabolism of Sevoflurane can be decreased when combined with Isoniazid.
Sildenafil
The metabolism of Sildenafil can be decreased when combined with Isoniazid.
Simvastatin
The serum concentration of Simvastatin can be increased when it is combined with Isoniazid.
Sodium Bicarbonate
Sodium bicarbonate can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfadiazine
The metabolism of Sulfadiazine can be decreased when combined with Isoniazid.
Tamoxifen
The serum concentration of the active metabolites of Tamoxifen can be reduced when Tamoxifen is used in combination with Isoniazid resulting in a loss in efficacy.
Tamsulosin
The metabolism of Tamsulosin can be decreased when combined with Isoniazid.
Tapentadol
The metabolism of Tapentadol can be decreased when combined with Isoniazid.
Tegaserod
The metabolism of Tegaserod can be decreased when combined with Isoniazid.
Temazepam
The metabolism of Temazepam can be decreased when combined with Isoniazid.
Teniposide
The metabolism of Teniposide can be decreased when combined with Isoniazid.
Terbinafine
The metabolism of Terbinafine can be decreased when combined with Isoniazid.
Terfenadine
The metabolism of Terfenadine can be decreased when combined with Isoniazid.
Testosterone
The metabolism of Testosterone can be decreased when combined with Isoniazid.
Testosterone Cypionate
The metabolism of Testosterone cypionate can be decreased when combined with Isoniazid.
Testosterone Enanthate
The metabolism of Testosterone enanthate can be decreased when combined with Isoniazid.
Testosterone Undecanoate
The metabolism of Testosterone undecanoate can be decreased when combined with Isoniazid.
Tetrabenazine
The metabolism of Tetrabenazine can be decreased when combined with Isoniazid.
Tetrahydrocannabinol
The metabolism of Dronabinol can be decreased when combined with Isoniazid.
Thalidomide
The metabolism of Thalidomide can be decreased when combined with Isoniazid.
Theobromine
The metabolism of Theobromine can be decreased when combined with Isoniazid.
Theophylline
The serum concentration of Theophylline can be increased when it is combined with Isoniazid.
Theophylline anhydrous
The serum concentration of Theophylline can be increased when it is combined with Isoniazid.
Thioridazine
The serum concentration of Thioridazine can be increased when it is combined with Isoniazid.
Ticlopidine
The metabolism of Ticlopidine can be decreased when combined with Isoniazid.
Timolol
The metabolism of Timolol can be decreased when combined with Isoniazid.
Timolol Anhydrous
The metabolism of Timolol can be decreased when combined with Isoniazid.
Tiotropium
The metabolism of Tiotropium can be decreased when combined with Isoniazid.
Tipranavir
The metabolism of Tipranavir can be decreased when combined with Isoniazid.
Tixocortol
The serum concentration of Isoniazid can be decreased when it is combined with Tixocortol.
Tizanidine
The serum concentration of Tizanidine can be increased when it is combined with Isoniazid.
Tofacitinib
The metabolism of Tofacitinib can be decreased when combined with Isoniazid.
Tolbutamide
The metabolism of Tolbutamide can be decreased when combined with Isoniazid.
Tolterodine
The metabolism of Tolterodine can be decreased when combined with Isoniazid.
Tolvaptan
The serum concentration of Tolvaptan can be increased when it is combined with Isoniazid.
Trabectedin
The metabolism of Trabectedin can be decreased when combined with Isoniazid.
Tramadol
The therapeutic efficacy of Tramadol can be decreased when used in combination with Isoniazid.
Trazodone
The metabolism of Trazodone can be decreased when combined with Isoniazid.
Triamcinolone
The serum concentration of Isoniazid can be decreased when it is combined with Triamcinolone.
Trimethadione
The metabolism of Trimethadione can be decreased when combined with Isoniazid.
Trimipramine
The metabolism of Trimipramine can be decreased when combined with Isoniazid.
Troglitazone
The metabolism of Troglitazone can be decreased when combined with Isoniazid.
Tromethamine
Tromethamine can cause a decrease in the absorption of Isoniazid resulting in a reduced serum concentration and potentially a decrease in efficacy.
Umeclidinium
The metabolism of Umeclidinium can be decreased when combined with Isoniazid.
Valbenazine
The metabolism of Valbenazine can be decreased when combined with Isoniazid.
Valproate
The metabolism of Valproic Acid can be decreased when combined with Isoniazid.
Valproic Acid
The metabolism of Valproic Acid can be decreased when combined with Isoniazid.
Venlafaxine
The metabolism of Venlafaxine can be decreased when combined with Isoniazid.
Verapamil
The metabolism of Verapamil can be decreased when combined with Isoniazid.
Vilazodone
The metabolism of Vilazodone can be decreased when combined with Isoniazid.
Vinblastine
The metabolism of Vinblastine can be decreased when combined with Isoniazid.
Vinorelbine
The metabolism of Vinorelbine can be decreased when combined with Isoniazid.
Vitamin K 3
The metabolism of Menadione can be decreased when combined with Isoniazid.
Voriconazole
The metabolism of Voriconazole can be decreased when combined with Isoniazid.
Vortioxetine
The metabolism of Vortioxetine can be decreased when combined with Isoniazid.
Warfarin
The metabolism of Warfarin can be decreased when combined with Isoniazid.
Yohimbine
The metabolism of Yohimbine can be decreased when combined with Isoniazid.
Zalcitabine
The metabolism of Zalcitabine can be decreased when combined with Isoniazid.
Zidovudine
The metabolism of Zidovudine can be decreased when combined with Isoniazid.
Zolpidem
The metabolism of Zolpidem can be decreased when combined with Isoniazid.
Zopiclone
The metabolism of Zopiclone can be decreased when combined with Isoniazid.
Zuclopenthixol
The metabolism of Zuclopenthixol can be decreased when combined with Isoniazid.
