title_body: Is it ok to take antacid tablet after drinking beer?
upvoted_answer: It depends... I don't see an issue with the standard Tums or Rolaids but there might be issues with ranitidine according to some studies.
  
  http://www.webmd.com/digestive-disorders/news/20000215/zantac-alcohol-dont-mix
  
  
    "The effect was striking," says author Charles Lieber, MD. In a
    three-hour test period, conducted under conditions similar to social
    drinking, the study showed that ranitidine can increase blood alcohol
    content by 38%. Levels reached in the study exceeded the legal
    drinking limit -- and the effects lasted up to two hours after
    drinking stopped.