I went to a show last weekend. A man whom I talk to at all the shows said his ferret had a bad reaction to Fervac-D. He called United and reported it and in so many words asked them if there was a problem with it and they said they were looking into it. I can only assume from that reply that they are getting quite a few reports of reactions. I recently spoke with Dr. Hoffman from the AFA and she said she had received a lot of reports of reactions. I talked to my vet about it and she wondered if it was just certain lot numbers. They have not had any problems at the clinic she works at. (This is a 15 vet practice.) I hear of reactions at every show I go to yet I've never heard of anyone who had reactions with Fromm-D. Anyone on this list who has had problems with Fervac-D, if you know the lot # would you please e-mail it to me and let me know what type of reaction you had. I'll pass the information on to Dr. Hoffman and my vet. I'm curious to see if any one lot is involved. I asked my vet if it would lessen a possible reaction if I pretreated my ferrets who hadn't previously had any reactions with Benadryl Elixir before I vaccinate. She said it could possibly lessen a reaction. The dose she gave me was the same as for cats 1mg/lb. of ferret which works out to .4ml per pound given approximately 1/2 hour to 45 mins. before vaccinating. If any of the vets on the list have a different dosage for ferrets I'd appreciate it if they would post it. I have 3 ferrets to vaccinate this weekend and I'm going to give them the Benadryl first as a precaution. [Moderator's note: As a general rule I don't changing wording in posts, but please note I think the above dose should read 1mg/kg BIG] Cindy [Posted in FML issue 1187]