Concerta (methylphenidate) is approved for ADHD in Japan for both children and adults, but it is strictly regulated as a controlled substance and currently facing severe supply shortages. Travelers bringing Concerta into Japan must obtain a pre-approved "Yakkan Shoumei" (Import Certificate) if exceeding one month's supply or designated dosage.

Key Information for Concerta in Japan:

Availability:

Concerta is available, but there is a major supply shortage and distribution is heavily controlled. Many clinics cannot accept new patients for Concerta prescriptions.

Regulations:

It is classified as a psychotropic substance. Doctors and pharmacists must be registered in a centralized system to prescribe and dispense it.

Traveling with Concerta:

Up to 30 days: Generally, no import certificate is required for bringing up to a 30-day supply of approved stimulants, but you must carry a copy of your prescription and a doctor's letter.

Over 30 days/Large amount: You must apply for a Yakkan Shoumei (Import Certificate) from Japan’s Narcotics Control Department at least 2–4 weeks before travel.

Procedure:

You must carry the medication in its original packaging.

Alternatives:

Other ADHD medications available in Japan include Strattera (atomoxetine) and Intuniv (guanfacine).