Does sulfur contain aspirin or penicillin?

Answer 1

No, Sulfur is an element.

Aspirin is an organic molecule (C9H8O4) which contains Carbon, Hydrogen, and Oxygen (all of which are elements).

Penicillin is a larger class of antibiotics which were originally extracted from Penicillum fungi. These are all organic molecules.

Now you could ask the question do aspirin or penicillin contain sulfur.

The answer would be, aspirin does not contain sulfur but "Penicillin" could contain sulfur depending on which derivative of penicillin is being discussed because penicillin is a large class of molecules that share a common core structure.