You should not drink alcohol after taking medication for diarrhea. Alcohol itself is a stimulating food, which is very irritating to the stomach and intestines themselves, and drinking alcohol during diarrhea can aggravate the condition. Also, alcohol affects most of the medications and reduces their effectiveness. Drinking alcohol can affect the circulation of the medicine in the body, which is not conducive to the effectiveness of the medicine. In addition, there are many causes of diarrhea, and the medications taken are different. If you drink alcohol after taking antibacterial and anti-inflammatory drugs, it may react with the drug to produce adverse reactions, especially during oral cephalosporins, which should be prohibited, otherwise adverse reactions may occur, even life-threatening.