From Wikipedia >A drug is any chemical substance that causes a change in an organism's physiology or psychology when consumed. So yes, both nutmeg and pot are

From Wikipedia >A drug is any chemical substance that causes a change in an organism's physiology or psychology when consumed. So yes, both nutmeg and pot are plants and drugs when consumed with the right dosage. Nobody considers nutmeg a drug as it's rarely used as one in their presence. And it was probably discovered when nutmeg was used for food preservation.