Penicillin

Penicillin has contributed much to the welfare of mankind.

To whom do we owe the discovery of penicillin?

I am allergic to aspirin, penicillin, and sulfa drugs.

I am not allergic to penicillin.

I'm allergic to aspirin, penicillin, and sulfamides.

This bacterium is resistant to penicillin.

I'm not allergic to penicillin.

Tom's life was saved by penicillin.

Tom is allergic to penicillin.

I'm allergic to penicillin.