Please let us know how he does. I can just imagine how frightening & upsetting something like that can be. I pray that he will make a complete recovery.
How big is your dog? Its hard to imagine what the dose equivalent would be to a dog getting even one human pill. Scares me even to think about it. My husband and I are getting to the age where we take lots of pills and don't see real well. I am always scared I will drop one and Little Bit will find it before we do. Our nearest emergency vet would be a good trip too.
Sorry didn't mean to make it "all about me". Good luck to you both & God bless.