However, given the millions of doses of ...

Generally, no. Alcohol does not reduce the effectiveness of most antibiotics. However, alcohol can increase side effects caused by some antibiotics, such as dizziness or upset stomach. You should definitely avoid alcohol while taking metronidazole (Flagyl), as this combination may cause nausea and vomiting. There have been several reports of individual trimethoprim-sulfamethoxazole (Bactria) causes a similar reaction with alcohol. However, given the millions of doses taken per year, this reaction is probably rare. Package inserts for Bactria is not warning against drinking alcohol while taking the drug strattera price. Heavy daily alcohol consumption can impair liver function, which may reduce its ability to absorb some antibiotics. A:. May 8, 2011