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Medical experts are why so much money was developing and then stocking up on medications for influenza. The tablet Tamiflu and nasal spray Relenza are commonly by doctors to the flu. Governments have heavily the drugs as a precaution in the event of an influenza epidemic. However, new research doubt on their effectiveness and on the claims by their manufacturers. The Cochrane Collaboration, a non-profit healthcare research network, and the British Medical Journal a report based on clinical trials of the drugs. The study whether governments should be money on the drugs.

The research says Tamiflu what manufacturers in that it the symptoms of influenza by half a day. However, it says there is insufficient evidence to claims that the drug reduces the likelihood of hospitalization or serious complications. The researchers also found Tamiflu the risk of nausea and vomiting by up to five per cent, and could headaches and depression. Tamiflu's makers said the research "real-world data". The research team said Relenza little better than gargling with salt water or taking over-the-counter pain relievers. The maker, GlaxoSmithKline, said: "When appropriately, in the right patient, it can the duration of flu symptoms."