On Sun, Jan 1, 2012 at 10:10 AM, Gail Francis <gailmfrancis at yahoo.com> wrote: > And as to the person that is headed to South America, I don't think you need to take flagyl with you Tinidazole works way better for Giardia than Flagyl, with fewer side effects http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0000280/