cats

I use Chewy. They were able to verify the prescription with my vet and I can reorder as needed.

If chewy has it, I'd use them. Otherwise, we use CareFirst specialty compounding. Kind of an archaic website but relatively cheap for the med that chewy doesn't supply.

Nothing special but we use Chewy, I setup a subscription for the medicine so it auto ships, and when the prescription is out of refills they handle communication with the vet without me having to do anything. It's been pretty smooth process.