>Flagyl. Flagyl must be administered exactly in the dosage the Dr. >absolutely hate the stuff so, scruff them tight when you give it to them. When my vet supposedly found giardia in my ferrets, she prescribed for my ferrets Panacur (fenbendazole), distributed by Hoechst Roussel Vet. You might ask your vet whether this might be an effective substitute for Flagyl. It bills itself as an anthelmintic, and says the chemical name is methyl 5-(phenylthio)-2-benzimidazolcarbamate. My ferrets tolerated weeks of this with no apparent bad symptoms. They thought it was a treat. The "carbamate" part of the name sounds alarming given Dr. Williams' warnings, but I am not a chemist or vet so have no idea what sorts of combinations are bad or good, and this is what my vet prescribed, and there were no apparent ill effects, as I said. My vet gave me a tube big enough for a horse (literally, box says it treats one horse). Her dosage was 0.5 ml for my male ferret and 0.2 ml for my female, orally once for 7 days (and then I did another 7 day treatment on her recommendation since they weren't entirely cleared up by the first treatment). Todd [Posted in FML issue 2470]