This article explores the laws and regulations surrounding ibuprofen in Japan, a common over-the-counter pain reliever. Ibuprofen is legal in Japan but requires a valid prescription from either a doctor or pharmacist before it can be purchased over-the-counter at most drugstores. Travelers who wish to bring their own personal supply of medication into the country are allowed up two months' worth without needing any sort of documentation beyond what customs officials require upon entry into the country. Alternatives such as acetaminophen (Tylenol), nonsteroidal topical creams like diclofenac gel, and traditional herbal remedies like ginger tea may provide similar relief without requiring prescriptions.