OKAY, to appease JH1:
DISCLAIMER: I am not actually telling you to do this in real life. I am only joking and would not encourage or condone anyone actually having another involuntary ingest syrup of epecac.
However, hypothetically speaking, you don't cook syrup of epecac. It comes in little bottles at the drugstore. It tastes a bit like maple syrup, so it would be easily disguised in something like general tso's chicken. Putting more than a small dosage according to package directions may seriously injure someone. Even if you put a little amount, I guess there is some small risk of some harm. It basically makes you throw up like you've never thrown up before. UGH.
ONCE AGAIN, DON'T REALLY DO THIS IN REAL LIFE. I'M ONLY KIDDING.