Psychiatric Medication in Japan: What Is Available and How Prescribing Works
The main classes of psychiatric medicine used in the US and Europe are all approved in Japan, under Japan's own approval list and prescribing rules, and the gaps are a few individual medicines. Each section below links to a more detailed guide.
How does Japan's approval system work?
Japan has its own approval process, run by the health ministry with review by the PMDA, so the list of approved medicines overlaps heavily with the US and Europe without matching either. Most SSRIs and SNRIs, the major antipsychotics, the mood stabilizers, and the newer sleep medicines are approved here, usually under the same generic names. The best-known gaps are fluoxetine (Prozac) and bupropion (Wellbutrin) among antidepressants, Adderall and the other amphetamine stimulants (Vyvanse is the exception, approved to start in children only; the rules for ADHD medication), and over-the-counter melatonin. When your medicine exists here, continuing it is straightforward; when it does not, a psychiatrist here can switch you to an available equivalent. The full list is in our table of medication equivalents.
How does prescribing culture differ?
Approved doses are lower for some medicines, follow-ups are short, controlled medicines are handled strictly, and generics are the default.
Doses are lower for some medicines. Japanese approved maximums are sometimes lower than American ones (sertraline's maximum here is half the US one, for example), and treatment usually starts at a low dose and goes up in steps.
If you arrive on a dose above the Japanese maximum, insurance will not cover the part above the ceiling, so continuing the same medicine at your old dose is not usually an option. What your psychiatrist can do instead:
- Reduce you to the Japanese ceiling. This is a reduction, not a stop, but some medicines, such as paroxetine and venlafaxine, can cause withdrawal symptoms even when the dose is lowered, so the reduction is made gradually.
- Switch to a medicine whose Japanese ceiling matches what you were taking. Escitalopram's maximum is the same in Japan as in the US, for instance, while duloxetine's is lower here, so this is decided medicine by medicine.
- Add a second medicine to strengthen the first. Some medicines are approved in Japan for adding to an antidepressant that has not worked well enough on its own, and this is covered by insurance.
Paying out of pocket to keep the old dose is sometimes raised as a workaround, but it has a catch: a dose above the approved maximum is outside the medicine's Japanese label, and Japan's relief system for serious side effects of medicines covers medicines used as labeled, judged case by case. At an off-label dose you might not be covered if something went wrong, which is one reason to stay within the ceiling.
Bring your records either way. A documented history at the higher dose lets the doctor here decide quickly instead of starting from scratch.
Follow-ups are short. A return visit is often five to ten minutes, and doses are adjusted in small steps.
Controlled medicines are handled strictly. Benzodiazepines carry a risk of dependence, so they are prescribed with that risk weighed against the benefit in a given situation, and the insurance rules discourage long-term and multi-drug use (how the benefits and risks are weighed). ADHD stimulants are prescribed through a registration system for doctors, pharmacies, and patients (the registration system and the Concerta shortage). Online, controlled psychotropics, which include benzodiazepine-class medicines, zolpidem, zopiclone, and methylphenidate (Concerta), cannot be prescribed, at a first visit or a follow-up, until a doctor has examined you in person for that condition, while most other psychiatric medicines can be started at an online first visit when the doctor has your medical background (the online prescribing rules).
Generics are the default. Pharmacies routinely dispense generics and explain them to you. If you ask for the original brand when a generic exists, you pay an extra charge on top of your usual share.
How does the pharmacy side work?
Prescriptions are filled at a separate dispensing pharmacy and are valid for four days including the day of issue, weekends and holidays included. Your doctor can write a longer period on the prescription if you have a reason such as travel, but the short default catches people out, so fill it promptly. The pharmacist keeps your medication record in a notebook or app (お薬手帳, okusuri techo) that you can use at any pharmacy, and can check for interactions across everything you take, which is a practical reason to use one pharmacy. Health insurance covers prescribed psychiatric medication at the standard cost-sharing, and the subsidy program for ongoing psychiatric treatment applies to medication too.
Two guides cover the edges: bringing medication into Japan when you move, and online prescriptions and medication delivery once you are here.
What is available, class by class?
Every major class is available; the gaps are a few individual medicines, mostly among antidepressants and ADHD stimulants.
Antidepressants: broad availability, with two well-known gaps. SSRIs available here include escitalopram, sertraline and paroxetine; SNRIs include duloxetine and venlafaxine; and mirtazapine, vortioxetine and trazodone are also approved. Read what is available and how switching works.
Sleep medicines: Japanese sleep specialists recommend an orexin receptor antagonist first (lemborexant and suvorexant in their 2023 consensus; daridorexant, approved later, belongs to the same group); ramelteon is another newer option, and none of these four is likely to cause dependence. The older sleeping pills, such as zolpidem and eszopiclone, are still prescribed. They carry a risk of dependence, and used for a limited period with an end point agreed in advance, the benefit can outweigh that risk. Read which sleeping pills are prescribed in Japan.
Anti-anxiety medication: an SSRI is the usual daily medicine, with benzodiazepines such as alprazolam and lorazepam in a supporting role, used when the benefit in a specific situation outweighs the risk of dependence (clonazepam is approved in Japan for epilepsy only). Etizolam, which is approved in Japan but not in the US or the UK, is also prescribed here. Read what is prescribed for anxiety in Japan.
Antipsychotics and mood stabilizers: the standard international options, including aripiprazole, brexpiprazole, quetiapine, olanzapine and risperidone, and options for bipolar depression. The mood stabilizers lithium, valproate and lamotrigine are available, and the blood-test monitoring that lithium, valproate and clozapine need is routine here.
ADHD medication: the most tightly controlled area, with a registration system for stimulants, no Adderall, and a Concerta shortage that has continued since 2025. The non-stimulants atomoxetine and guanfacine are outside the registration system. Read how ADHD medication works in Japan.
Kampo: Chinese in origin but developed separately in Japan, so it is not the same as the traditional Chinese medicine practiced in China today. The formulas used in clinics are standardized extract products, and a set list of them is covered by insurance. A Japanese psychiatrist may add one alongside standard treatment. Read what the evidence says about kampo for mental health.
Our medication information pages describe, for each medicine, what it is, what to expect, and how stopping works.
What if your medication doesn't exist here?
Confirm the gap before you travel, bring your records, carry a legal supply, and make the switch early with a psychiatrist here.
- Confirm the gap before you fly, using the equivalents table.
- Bring records showing what the medicine was doing for you.
- Carry a legal supply to cover the first weeks (the import rules).
- Make the switch in your first weeks with a psychiatrist here, not when the supply runs out.
The switch for each common gap is explained in its own guide, such as the ones for Prozac and Wellbutrin.
Frequently asked questions
This article is general information, not medical advice for your individual situation. Decisions about medication belong in a consultation with a doctor who knows your history.
Medically reviewed by our psychiatrist (M.D.). Updated October 16, 2026.