I'm still waiting to hear back from my vet, but from the research I've done online it seems that they're interchangeable dosages. Seems weird to me because, as you say, even a small difference in dosages can cause big problems with some medications. What I did find out was that 15 mg can be hard...
My cat has been on 15 mg pheno twice a day for years with great success. Today when I went in to pick up his new Rx, I noticed it was now 16.2. The tech could only tell me they were the same dosages, but...if they're the same, then why do manufacturers make both 15 and 16.2 mg? It doesn't sound...
