Do not take these drugs if you have any kind of drug allergy, and always check the ingredients on the label. Trying to be prepared for any eventuality might lead to overpacking. Various medicines from a Japanese pharmacy Shelves in a Japanese drugstore The ibuprofen-based medicine Ringl Taisho Kampo, a plant-based natural medicine Muhi Pacchi, patches for kids to soothe insect bites Travelmin, medicine to help with travel sickness Close Stay Healthy A headache spoiling your trip? Pills over liquids Whenever possible, if you have to choose between packing medicines in liquid form or pills, opt for pills. Padded bandages A small blister can make walking very hard.Skip to review Best for bulk ordering Viagra and generic Viagra: Optum Store Viagra Best subscription service for Viagra and generic Viagra: Rex MD Viagra. Many drugs that are commonplace elsewhere may not be allowed within Japan (some notable examples are Viagra, Adderall, Dexedrine, Prozac). If you do need to take with . A headache spoiling your trip? No worries! Here are some of the common over-the-counter drugs in Japan for relief.