Drugs are a staple of RPGs set in a dark future (cyberpunk, shadowrun, fallout) or dark world (chronicles-of-darkness, world-of-darkness, call-of-cthulhu). Many of these games also have rules about the consumption and effects of such.
Pharmaceutically speaking, drugs is actually the word for many compounds that act on the body and comes from the word for dried (herbs). So from that standpoint, it would be a non-issue to have a drugs and ask about how a game handles Aspirin or other medicine under it. Maybe medicine-and-drugs to stress that it is about any kind of medical product.
However, the colloquial meaning of drugs is more often that of recreational and/or illicit substances, a tiny subset of the pharmaceutical meaning of the word. This is also what might make a drugs problematic: the automatic connotation with illegality, though it fits the main use of the theme in many RPGs.
In other games, often the more fantasy kind, drugs appear in the rules for poisons, for example the-dark-eye treats alcohol as a weak poison. This would suggest drugs-and-poison a better term - but poison already exists!
Maybe I don't see other, better ways to name a tag that encompasses drugs and avoids to be connotated to illegality?
These questions might or might not need the new tag. It might take a few weeks to mix them naturally into the flow of questions.