It is not recommended to drink tea immediately after taking medicine, because tea is rich in tea polyphenols, will make some anti-inflammatory drugs produce secondary failure, such drugs are cephalosporin, penicillin, roxithromycin, azithromycin, ofloxacin, etc., so the above anti-inflammatory drugs must be taken at least one hour after the medicine before drinking tea. In addition, tea is rich in tannic acid, if you drink tea after eating some drugs, will directly cause malabsorption and digestive problems, this kind of drugs are iron supplements, such as red source of drugs, etc., is not allowed to drink tea after taking drugs. If you must drink tea, at least 24-48 hours later. However, there are some drugs that you can drink tea after 15 minutes, such as some antiviral drugs, ganciclovir, ribavirin, oseltamivir, etc., you can drink tea 30 minutes after taking the drug.