In Digest 36, more in a continuing discussion of transdermal medication: I must concur with you completely!!! I wish someone would pay to take about 20 or 30 healthy ferrets and apply some transdermal flagyl and test blood levels. I'm not sure this would even work because that would not even guarantee that it was penetrating the intestinal lumen. Got an extra $25,000 ? --ben The only drug i've seen transdermal validated for is tapezole in cats Benjamin A. Otten, DVM Avian & Exotic Pet Medicine The Animal Medical Center 510 East 62nd St NY, NY 10021 [Posted in FML issue 3349]