If you do ever find out what may be causing the seizures, please update! It sounds like your vet is open to advice and willing to learn more about treating rats-- that's really great! Some vets that don't have much experience w/ rats aren't always receptive to discussing and following guidance that rattie caretakers bring with them to the appointment. It's fantastic that your vet is open to trying things that she may not have had experience with before. Your vet is definitely a keeper.
It can be incredibly frustrating and difficult finding a great veterinarian especially when it comes to exotics like our rats.
In case you're interested in reading about Phenobarbital, here's a link to the ratguide for the medication:
http://ratguide.com/meds/central_nervous_system_drugs/phenobarbital.php
I personally enjoy reading this kind of stuff, it's really interesting and it also helps to know a little more about the med and how it works.
That's awesome! It sounds like a great mix to hide the medicine and I'm glad that he is eating it up without a fuss. Hm ...as far as the biscoff's biscotti butter, if you have access to Amazon in Portugal you should be be able to order it. I wouldn't be surprised if it's sold in Portugal but under a different brand/product name. The next time you visit your vet maybe ask about the Harrison's Recovery Formula. It's actually for birds but exotics vets here in the States use it for small mammals. Harrison's is an international brand and if your vet doesn't carry it at the clinic, she might be able to order it for you. The Recovery Formula is a great thing to have on hand especially if you have a rat recovering from illness or surgery and it's great for baby rats and elderly rats too (can help w/ weight gain or maintaining weight).
Hey I'm glad that the dosage website was so helpful! I think one of the admins should add it to a sticky thread on the forum-- I don't know how many times I've seen posts asking for dosage calculations and before I found that site it was painful trying to calculate the correct dosages for myself IMO.
You're very welcome! I'm so glad that I was able to help.
Please give your boy lots of scritches and a smooch for me!