One of the first surprises many foreigners encounter in Japan is how differently the prescription medication system works compared to their home country. Medications you could buy over the counter back home might require a prescription here — and some drugs you relied on may not even be available. This guide covers everything expats need to know about getting, filling, and managing prescription medications in Japan.
How Prescriptions Work in Japan
Japan strictly separates prescribing from dispensing (医薬分業). This means your doctor writes a prescription (処方箋 / shohōsen), and you take it to an external pharmacy (薬局 / yakkyoku) to have it filled. The doctor’s clinic does not give you the medication directly.
Here is the typical process:
- See a doctor: After your consultation, the doctor decides if medication is needed and writes a prescription.
- Receive the prescription: You get a paper prescription at the reception desk when you pay for your visit.
- Go to a pharmacy: You can use any pharmacy in Japan — you are not restricted to a specific one. Most people choose a pharmacy near the clinic for convenience.
- Fill the prescription: The pharmacist will prepare your medication, explain how to take it, and answer any questions. They may also provide a medication notebook (お薬手帳 / okusuri techō) to track your prescriptions.
- Pay: If you have health insurance, you pay 30% of the medication cost. Without insurance, you pay the full amount.
Important: Prescriptions in Japan are valid for only four days (including the day of issue). If you do not fill your prescription within this window, it expires and you will need to see your doctor again.
Medications That Are Different in Japan
Japan’s pharmaceutical regulations differ significantly from those in the US, UK, Australia, and most European countries. Some key differences:
Medications That Require a Prescription in Japan (But May Not in Your Country)
- Stronger pain relievers: Medications containing codeine in higher doses require a prescription.
- Certain allergy medications: Some antihistamines that are OTC elsewhere require a prescription in Japan.
- Birth control pills: Oral contraceptives require a doctor’s prescription in Japan. There is no OTC birth control pill.
- Sleeping pills: Even mild sleep aids often require a prescription.
Medications That Are Prohibited or Restricted in Japan
Japan has strict drug control laws. The following are particularly important for foreigners to know:
- Stimulant medications (amphetamines): Adderall and other amphetamine-based ADHD medications are completely banned in Japan. You cannot bring them into the country, even with a prescription from your home country. Alternative ADHD medications such as Concerta (methylphenidate) and Strattera (atomoxetine) are available by prescription in Japan.
- Pseudoephedrine in large quantities: Common cold medications containing pseudoephedrine (like Sudafed) are restricted. You may bring a small personal supply but cannot exceed certain limits.
- Some opioids: Certain opioid painkillers common in the US are not available or heavily restricted in Japan.
If you are taking ADHD medication, see our guide on ADHD in adults for information on managing your treatment in Japan.
Bringing Medication Into Japan
If you are bringing prescription medication from your home country, follow these rules:
- Up to one month’s supply: Most prescription medications (except controlled substances) can be brought in without special permission, as long as you carry no more than one month’s supply.
- Yakkan Shōmei (薬監証明): For quantities exceeding one month’s supply, or for certain controlled medications, you need to apply for an import certificate from the Ministry of Health, Labour and Welfare before your trip. This process takes about two weeks.
- Carry documentation: Always bring a letter from your doctor (in English) stating your diagnosis, medication name (generic name preferred), dosage, and the reason for the prescription.
- Keep medication in original packaging: Do not transfer pills to unmarked containers.
Generic vs. Brand-Name Medications
Japan has been actively promoting generic medications (ジェネリック医薬品) to reduce healthcare costs. Generic drugs are significantly cheaper — often 50% to 80% less than the brand-name version. Your doctor can prescribe generics, and your pharmacist may also suggest a generic alternative. The quality and efficacy of generics in Japan are regulated to the same standards as brand-name drugs.
The Medication Notebook (お薬手帳)
When you first visit a pharmacy in Japan, you will be offered a medication notebook. This small booklet records every prescription you receive, including drug names, dosages, dates, and prescribing doctors. It is an incredibly useful tool for preventing drug interactions and ensuring continuity of care, especially if you visit multiple clinics. Many pharmacies now also offer digital versions through smartphone apps.
Keep your medication notebook with you whenever you visit a doctor or pharmacy.
Cost of Prescription Medication
With health insurance (NHI or employer-based), you pay 30% of the medication cost. Japan’s regulated pricing system means medication costs are generally lower than in the US, though some newer drugs can still be expensive. A typical prescription for common medications (antibiotics, antidepressants, blood pressure medication) costs ¥500 to ¥3,000 out of pocket with insurance.
Without insurance, you pay the full price. For details on insurance options, see our guide on health insurance in Japan for expats.
Mental Health Medications
Japan has a range of psychiatric and psychosomatic medications available, including SSRIs, SNRIs, benzodiazepines, non-benzodiazepine sleep aids, and mood stabilizers. However, the specific brands and formulations may differ from what you are accustomed to. Your doctor can help you find an equivalent medication available in Japan. For more on mental health treatment options, see our article on mental health support in Tokyo.
Tips for Managing Your Medications in Japan
- Know the generic name: Medication brand names differ between countries. Always know the generic (chemical) name of your medication.
- Plan refills in advance: Do not wait until you run out. Japanese doctors typically prescribe 14 to 30 days of medication at a time for ongoing conditions.
- Use one pharmacy: Choosing a regular pharmacy (かかりつけ薬局) helps the pharmacist track your medication history and catch potential interactions.
- Ask about side effects: Pharmacists in Japan are highly trained and can explain potential side effects and interactions in detail. Some pharmacies have English-speaking staff.
Get Your Prescriptions in English
At Tokyo Hub Clinic, Dr. Ichiro Kamoshita, M.D., Ph.D., conducts all consultations in English and can explain your medications, dosages, and any restrictions clearly. Whether you need to start a new medication or continue a prescription from your home country, we can help you navigate Japan’s pharmaceutical system. Located at Hotel New Otani Garden Court, 2F, near Akasaka-Mitsuke and Nagatacho stations.
By appointment only. Initial consultation: approximately ¥10,000–¥15,000.
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