Roche Holding AG's Tamiflu, known generically as oseltamivir, and GlaxoSmithKline Plc's Relenza, or zanamivir, are both recommended drugs for seasonal flu and have been shown to work against viral samples of the new disease.
Tamiflu is expected to be in greatest demand should swine flu develop into a pandemic, as experts fear it may, since it is given as a tablet. Relenza must be inhaled.
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