Insist that they agree on a solution. Be sure to mention the title. I took tetracycline for an infection. The drug book I read stated that consuming alcohol with the antibiotic could cause liver damage. My doctor and pharmacist said not to worry.
Many drugs react badly with alcohol.
In my opinion, consuming alcohol-containing beverages while taking medicine is unwise. The liver detoxifies both alcohol and tetracycline, so, when taken together, the combination could theoretically cause liver damage in susceptible individuals. To be on the safe side, however, you can simplify the issue by avoiding alcohol when you take medicine.