
Nikita
I had a similar scenario with a bitch several years ago. She was put on epiphen, low dose, and liquid. (For seizures.) When her next blood test showed she needed a higher dose, I didn't think to ask why it was phenobarbitone tablets. I was just pleased that tablets were far less fiddly, and thought no more about it.
Her next blood test showed another change. The results came through while I was on holiday. My vet called me on my mobile with the results, as he knew that I had the dog with me. And he asked if I had enough tablets with me to increase her dose. I said yes, so her dosage was upped while I was away.
On my return, I called in to the hpspital and asked one of the girls to order me some more phenobarb, but wanted the next size tablet up, to save me messing about giving one and a half tablets. My repeat orders were done by phone with no problems. Until I had an appointment with another dog, and saw my vet to talk to. I was gobsmacked when he told me that I could get him struck off!!!

When we got to the bottom of it, it was a misunderstanding. When I asked for a larger tablet, the girl I spoke to ordered the same drug (naturally), but it appeared that this next size tablet came in "epiphen" which you prescribe for dogs, only using the human equivalent (phenobarb) if the same dosage is not available. Neither the receptionist or I were aware!