Experts question the effectiveness of antiviral drug Tamiflu commonly used against the swine flu virus spreading across the globe, according to a study reported in Britain Tuesday.
Experts question the effectiveness of antiviral drug Tamiflu commonly used against the swine flu virus spreading across the globe, according to a study reported in Britain Tuesday.
An investigation by the British Medical Journal and Channel 4 News acknowledges that the drug oseltamivir, which trades as Tamiflu, has "a modest effect in reducing flu symptoms and infectivity in otherwise healthy adults."
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Channel 4 News was to air the investigation Tuesday.
The use of flu drugs like oseltamivir has increased dramatically since the A(H1N1), or swine flu, pandemic began in April 2009, with government rushing to stockpile treatments while persuading people to have vaccinations.
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Claims about the effectiveness of drugs like Tamiflu against flu complications have been a key factor in governments' choosing to spend millions of dollars to hoard them, the British Medical Journal and Channel 4 said.
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But research on the drugs by scientists from Australia's Bond University was hampered by a "paucity of good data" available from Swiss pharmaceutical giant Roche that produces oseltamivir.
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The researchers called on governments to set up studies to monitor the safety of drugs like Tamiflu, which are called neuraminidase inhibitors.
A team from the University of Birmingham concluded meanwhile that oseltamivir may reduce the risk of pneumonia in otherwise healthy people who contract flu.
"However, the absolute benefit is small, and side effects and safety should also be considered," the statement said.
Professor Nick Freemantle from the University of Birmingham said he saw "very little evidence to support the widespread use of oseltamivir in the otherwise healthy population who are developing signs of influenza-like illness."
"We have remarkably few resources in this country to spend on pharmaceuticals on health and it?s surprising to see such widespread use of oseltamivir," he said.
British Medical Journal editor-in-chief Fiona Godlee warned that the review left unresolved important questions about effectiveness of the drugs.
"Governments around the world have spent billions of pounds on a drug that the scientific community now finds itself unable to judge," she said.
Roche has estimated sales of 1.6 billion pounds this year alone from the drug, the statement said.
Source-AFP
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