Record any one of the following: antifungals, 'beta' blockers, seizure medications, HIV protease preventions, efavirenz, rifampin, amlodipine, alpha blockers, cimetidine, high blood stress medications, anticoagulants, rifabutin, erythromycin, other impotence therapy medicines, barbiturates, and some various other ones.
It is a great idea to make a list of the medicines - featuring any sort of organic supplements, minerals and vitamins.