Adverse reactions reported for oseltamivir and zanamivir and antiviral dispensations.

A. Oseltamivir, B. Zanamivir Single quotation denotes individual Lower Level Term of the MedDRA coding system, although no quotation indicates System Organ Class. FY, fiscal year starting on April 1 and ending on the following March 31. *The first bar for dispensation during fiscal year 2006 represents the number of dispensations calculated from pharmacy dispensation records between November 1, 2006, and March 31, 2007, due to limited data availability in the pharmacy claim database.