I haven't tried worms cause he is only a few weeks old and I assumed that those would be suitable for larger or at least older frogs I will try feeding with tongs if it doesn't take them from my hands. I would have liked to contact this doctor but if he is in the US I guess I can only go with what I can find here. He did seem a bit clueless, he wasn't even sure if the frog circling was normal but as a newbie even I thought that was a bit odd the first time I saw it. Sorry I don't have any details about the medication that was administered, the vet didn't give me any paperwork or anything just a syringe with the solution for parasites. I would have brought a fecal sample, I was even thinking about it in the car on the way there but because he hasn't been eating I haven't been able to get one.