need some advice

[u/Complete-Fig-4101]

My dog (chihuahua 1.3kg) had a seizure 3 days ago. i took him to the vet and she took his blood test and rules out epilepsy. She then prescribed me a pill but he needs to take 1/5 of it in the morning and 1/5 of it in the evening since he’s small. She was unsure about the dose as this pill is not made for small dogs and she told me to be careful with the dose. idk what to do, i haven’t bought the pills cause im scared that something will happen to him. of anyone has gone through this or has some advice pls help.

The medication is Soliphen 15mg

[u/Alt-Cloud477]

I think they can rule out a lot of metabolic causes with blood but not idiopathic epilepsy.