According to Drugs.com, Tamiflu is an antiviral medication. Tamiflu is used in the treatment of influenza in people at least 2 weeks old experiencing flu symptoms for two days or less. This drug may also be given to individuals at least 1 year old who may have had influenza exposure.
According to Drugs.com, Tamiflu is ineffective in treating the common cold. Common side effects from using Tamiflu include diarrhea, nausea, vomiting and stomach pain. This drug should be taken every 12 hours for five days to treat flu symptoms and every 24 hours for 10 days to prevent flu symptoms unless otherwise directed by a doctor. Whether Tamiflu causes harm to an unborn baby when taken during pregnancy is uncertain.