Is your pup (what's her name???) a Shep, Shep x? They have notoriously sensitive stomachs! After 12 hours, she should have absored the medic., so no worries there As for the side effects of the other med, those are classic minor side effects to a host of medics, in humans and dogs. I'm glad you have a good vet on hand that you can trust and speak with Hugs to your poochie!