Drinking alchohol while taling anti bioticcs will make the anti-biotics less liable to work.

depends how much you drink, if you drink responsibly you'll be fine.

Stay away from booze when you're on antibiotics of any sort. It makes you get drunk faster, and the antibiotics don't get absorbed into your system as well.

"Alcohol does not reduce the effectiveness of azrithromycin according to data provided by Pfizer, the manufacturer. The physiological impact of alcohol consumption on the body, depending on the quantity, may reduce the immune response to infections and make the condition more difficult to treat. Dehydration coupled with the impact on normal liver function will also complicate treatment. However, for the vast majority of infections, azrithromycin will be effective, despite the alcohol consumption." "I checked for possible pharmacokinetic interactions between alcohol (ethanol) and azithromycin. Ethanol interacts, as an inducer and substrate to CYP2E1 (a P-450 cytochrome in the liver). There are one or two minor P-450 interactions with azithromycin that I have seen in references on the web at reliable sites. None involve CYP2E1. There are no significant interactions of azithromycin with P-450 cytochromes that have been reported (None listed in Merck Manual). Therefore it is probably safe to conclude that ethanol will not affect the hepatic metabolism of azithromycin. Of course if you have liver disease and "need" a drink, that's another issue entirely. It is conceivable that alcohol will affect the absorption of azithromycin. So it is probably prudent not to drink alcohol in the hours before or after taking azithromycin. I am not a physician (I'm a biochemist), and I only mention this for discussion, not medical advice. If you want to drink alcohol and take medication, do so at your own risk." Source and further information: http://www.steadyhealth.com/will_alcohol_have_an_effect_on_azithromycin_t98960.html