The making of medicine used to be an art, judging from the exhibit in this historic home in Old Riga. Displays of porcelain containers, tools and century-old remedies trace the history of pharmacology in Latvia, and the authentic drug store brings visitors back to the 1920’s. It’s worth calling ahead to book a tour, because only then will the more obscure and even ominous aspects of prescribing and creating medicine be explained. Many of the antique packages and flasks contain their original contents, which in some cases are still potent. Just because the warning labels aren’t in a language you understand doesn’t mean you should try the drugs.