New Antibiotic

At a major medical convention, a noted internist arises to announce that he has discovered a new miracle antibiotic.

- What's it cure? - asks a member of the audience.

- Nothing we don't already have a drug for - the internist replies.

- Well, what's so miraculous about it?

- One of the side effects is short-term memory loss. Several of my patients have paid my bill three or four times!