For treatment of swine flu, or prevention in people who have been exposed to it, the CDC recommends oseltamivir (brand name Tamiflu ®) to treat or prevent infection in people one year of age and older, or zanamivir (brand name Relenza ®) to treat infection in people 7 years and older and to prevent infection in people 5 years and older.
A Roche spokewoman has told me that all Roche products, including Tamiflu, are gluten-free.
Glaxo Smith Kline
A GSK spokesman told me that gluten is not intentionally included among the active or inactive ingredients for Relenza, but the company cannot guarantee against cross-contamination.
Please note that this information applies only to drugs sold in the United States. If you are purchasing these or other drugs outside the United States, you’ll need to contact the manufacturers directly.