"Any interaction of alcohol with virtually all antibiotics is nonexistent, or so small as to be irrelevant. Metronidazole, an antibiotic used for a variety of infections, is the exception to this rule. When mixed with even small amounts of booze, it causes vomiting."The Times looks at that and some other medical "myths" (and offers a quick dismissal of the "one must finish the prescribed dose of antibiotics" theory).
Very reassuring. Now I hope they publish the DIY vasectomy article soon.