Since dogs have hypersensitive olfactory receptors they can smell drugs 100s of feet away. They also can associate a state of being with something they ingested. Always keep these things from your pet’s reach.
My WGSD got into my ADHD medicine once and ate 5xs the dose and had a bunch of tablets dissolve partially on his tongue. I took him, got his stomach pumped and it wasn’t a week later he did it again, and he did it about four times in total before I realized he was getting high on it!.
Dogs can smell the differences in prescriptions and they learn what does what if they like it. I hope this saves someone a trip to the vet emergency room, and prevents another canine speedfreak! (lol).
RIP Sir Porky 11/15/2001-07/15/2011.