What I have heard, from reading a practicing vet's blog (I am NOT a veterinary professional myself), is that cannabis is, like chocolate, considerably more toxic to dogs than it is to us. CBD oil is extremely variable, and the combinations of compounds will vary in amount and ratio in every batch, making it next to impossible to give accurate doses.
If it's a last resort thing, and you're doing this under the close supervision of your vet, well. That's a hard choice. But it's not something I would EVER attempt without the close supervision of a veterinary professional. Not at our current stage of research and understanding of proper dosage specifically in dogs. I'm honestly in agreement with your vet on this one. I'd rather give my pets a higher quality, but shorter, life than one where they're suffering from seizures, and I don't think I could ever forgive myself if I tried experiment with an untested treatment and caused more harm than good.
If it's a last resort thing, and you're doing this under the close supervision of your vet, well. That's a hard choice. But it's not something I would EVER attempt without the close supervision of a veterinary professional. Not at our current stage of research and understanding of proper dosage specifically in dogs. I'm honestly in agreement with your vet on this one. I'd rather give my pets a higher quality, but shorter, life than one where they're suffering from seizures, and I don't think I could ever forgive myself if I tried experiment with an untested treatment and caused more harm than good.