TL;DR - my dog ate as many as 15 Ambien and she's fine My dog is a 13yo St. Bernard/boxer mix and weighs about 70 pounds. Yesterday afternoon she came in from outside and plopped down on the floor and didn't get up from there for 2 hours. I accidentally dropped half of a 10 mg Ambien. My 12 pound, 6 month old chihuahua mix ate it faster than I could stop him. For one straight hour he ran around very hyperactive and literally bouncing off the walls. ok guys im not even on ambien but i gotta say i love ginger ale I usually split 10 mg in 1/2.I heard a pill hit the floor. not sure if it was the whole pill (10mgs) or just 1/2 pill (5mg) cause I keep the in the same bottle,,,not even sure the dog ate it, it just diappeared and the dog was standing right there. the dogs eats off the flooe like a vaccuum. My grandfather won't go, he say's my dog is fine. but he just ate my ambien pill. Should I start digging a grave, or can someone help me without saying steal the car and go to a vet. If your dog ate a very small amount of onion and is not showing any signs of illness, just keep an eye on them. If your dog eats more than a small amount of onion, contact or visit your vet. They. I actually gave my 10 pound dog a 10 mg ambien after he received 5 shots from a vet and was hurting. I could not believe how hiper the dog became and I than did more research and learned about this paradoxical effect of Ambien on dogs. I take 10 mg. Ambien at night, (to sleep) and my dog accidently ate my Ambien pill last night before I realized it. My dog ate a 10mg Ambien tablet. He is freaking out, like a person who has takentoo much crystal meth. He's freaking - Answered by a verified Dog Specialist.