We had it at my previous clinic. I'm trying to convince my new clinic to carry it! Clients loved it. Expecially on the not friendly barn cats that would rather murder you then ever let you near their mouth. I also used it on my shelter rescue kitten and he responded well. I also used it on a adult foster cat who had never been dewormed in her life and came to me covered in fleas, no side effects from her as well.
I currently have 3 foster bottle babies about 4 weeks old (I had 4 but the little girl passed away yesterday
, she wasn't gaining weight properly, all we can figure was fading kitten syndrome aka we don't know what happened). The family that found them watched for hours for mom to come back but she didn't. So we have no clue on the first 2 1/2 weeks of life. Anyways If I can convince my current place to order me some I will probably use it on them if I still have them when they are old enough.
I also have a previous coworker who used it monthly in her two cats because they were constantly catching mice and contracting tapes. Never had a issue with it.