Personally, I wouldn't worry about it. I know there are some that worry about the antibiotics issue but I don't. I think the composting process takes care of it. I'm sure someone will come along with a different opinion though :-)

Val

What is it that antibiotics are meant to do?
Antibiotics are meant to kill bacteria. If they kill bacteria, they do need to be present in high enough quantities, then they are not something you would want in your compost where bacteria are present, and needed, to digest the material in that compost pile. In smaller quantities antibiotics will allow the disease pathogens to develop immunities the them which means we will need stronger antibiotics that do not exist today to control many very minor illnesses that are not much of a problem today.
Some few years ago the Food and Drug Administration came out and said that the antibacterial/antimicrobial soaps are no more effective at controlling disease pathogens than any other soap, and that people should not use them since those bacteria stats in them got diluted in the waste stream and do not kill off those pathogens that were targeted, but do allow those pathogens to develop immunities to those bacteria stats.