Pharmacies, Prescriptions & OTC Medicine in Japan [2026]

In Japan, you usually take the prescription from a hospital to an outside dispensing pharmacy to get your medicine ("separation of dispensing"). This guide covers prescription validity, the cost, the medicine notebook, generics, OTC drugs and bringing medicine from home.

① How you get medicine

You receive a prescription at a hospital/clinic and a pharmacist dispenses it at an insurance pharmacy (outside dispensing). Some places dispense in-house instead.

② Prescription validity

Take the prescription to a pharmacy within 4 days including the issue date — weekends and holidays count. After that it is void and you must see the doctor again (a doctor may write a longer period for travel, etc.).

③ Cost & the medicine notebook

Medicine is covered by insurance; you pay 30% in principle (10–30% by age/income). Showing your medicine notebook (okusuri techo) lets the pharmacy check for duplicate drugs and interactions (there are app versions too).

④ Generics and the "selective treatment" rule

Generics have the same active ingredient and are cheaper; you can request them. Since October 2024, a "selective treatment" rule means that if you choose a brand-name drug without a medical need, part of the price gap is out of pocket. The rate is half of the gap (+ tax) from June 2026 (not applied if the doctor deems it necessary or there's no stock).

Coming March 1, 2027: for prescription drugs that are essentially the same as over-the-counter medicines (the Ministry of Health, Labour and Welfare lists active ingredients such as ibuprofen, loxoprofen and loratadine), patients will pay an additional one quarter of the drug cost on top of the usual co-payment. Exemptions include children (up to the March 31 after their 18th birthday), cancer treatment, designated intractable diseases, inpatients, and cases where the doctor confirms long-term use is medically necessary. Check with your doctor or pharmacist.

⑤ OTC medicine

Drugstores/pharmacies sell OTC medicine without a prescription. Class 1 is sold by a pharmacist; classes 2–3 by a registered seller. Eligible purchases may qualify for the self-medication tax break (a medical-expense deduction special case).

FAQ

How long is a prescription valid?Within 4 days including the issue date (weekends/holidays count). After that it is void and you must see the doctor again.

How much do I pay for medicine?It's covered by insurance — 30% in principle (10–30% by age/income). High costs may qualify for the High-Cost Medical Benefit.

Are generics cheaper?Yes. Since October 2024, choosing a brand-name drug without a medical need makes part of the price gap out of pocket (half the gap + tax from June 2026).

Can I bring medicine from my home country?For personal use, no procedure up to a limit (about 2 months for general medicine, 1 month for prescription drugs; for external-use drugs, 24 standard-size units per item). Beyond that you need an import confirmation certificate. Narcotics, psychotropic drugs (for example some sleeping pills and anti-anxiety drugs) and stimulant raw materials cannot be imported by ordinary individuals, and violations are punishable — you cannot order them from abroad by international mail or have someone else bring them in for you. The only exception is a patient who carries their own prescribed medicine into Japan: for narcotics and stimulant raw materials you need permission from the Regional Bureau of Health and Welfare whatever the quantity, and for psychotropic drugs an import confirmation certificate is required beyond 1 month's supply or for injections. Stimulants such as methamphetamine and amphetamine cannot be imported at all.

If you are new to Japan and unsure which clinic to visit or how medical consultations work, see how to use hospitals and clinics.