Bringing Antidepressants to Japan: What's Actually Allowed

Bringing antidepressants to Japan is legal. SSRIs aren't banned substances, and a 1-month supply can be brought in without any special certificate, the same allowance covering most prescription drugs. Carry a copy of your prescription and a doctor's letter - customs can ask for it, and a Japanese doctor will want it later. The real planning problem isn't the border, it's continuity: fluoxetine (Prozac) and citalopram are not marketed in Japan, so if you're on either one, plan for after your supply runs out.

Japan markets fewer antidepressants than the US, UK, or Australia. Among SSRIs available in Japan are fluvoxamine, paroxetine, sertraline, and escitalopram - good news if you're taking Zoloft or Lexapro, since both are sold locally under their generic names. That means a Japanese doctor can prescribe a direct continuation once your imported supply is gone, with no need to switch medications.

Here's the sequence that trips people up. You fly in with a few months of fluoxetine or citalopram, comfortably under the import allowance, so the border is a non-issue. Weeks later the bottle runs low, and you go looking for a Japanese pharmacy to refill it - except a shohosen (処方箋) written overseas can't be filled here, and a Japanese doctor can't prescribe a drug not marketed in the country. At that point you're not refilling, you're switching medications, and it's better to taper off one SSRI under supervision than to do it because you ran out.

Have this conversation before you leave, not after you land. If you're on fluoxetine or citalopram and moving to Japan long-term, ask your current prescriber about switching to sertraline, escitalopram, paroxetine, or fluvoxamine while you still have continuity of care - that gives you weeks of buffer instead of a scramble.

Separate from the marketing question, some psychiatric medications fall under Japan's Narcotics Control Department thresholds - a specific total amount you can carry without a certificate, distinct from the general 1-month allowance. These apply to specific drugs on an official list (benzodiazepines like alprazolam and diazepam are common examples), not to antidepressants as a class, and most standard SSRIs aren't on it. Classification is exact, though, and third-party sites sometimes quote wrong numbers, so verify your specific drug against the official MHLW list rather than assuming.

Sorting out insurance or finding a doctor as part of a broader move? The moving to Japan guide covers relocation setup, and the health guide has more on import rules and the pharmacy system. For other medications, see bringing Ambien to Japan, ADHD medication rules, and Sudafed and decongestants.