Stopping Antidepressants: Withdrawal and Tapering in Japan
Do not stop an antidepressant suddenly on your own. Japanese drug labels say to avoid a sudden stop and to reduce the dose gradually while watching how you respond; the paroxetine label puts this at weeks or months. Stopping is a normal part of treatment, and it goes better as a planned taper than as a sudden stop.
What happens if you stop an antidepressant suddenly?
Discontinuation symptoms can appear. Paroxetine is the clearest example, because its Japanese label describes stopping in detail: it lists dizziness, electric-shock-like sensations, sleep problems including nightmares, anxiety, nausea, and headache among the symptoms reported after stopping or reducing the dose. The escitalopram label carries a shorter list of the same kind. Not everyone gets these; the labels describe what can happen, not what will. Which antidepressants are prescribed here is in our overview of antidepressants in Japan.
The illness itself can also come back. The medicine was treating something, and relapse of depression or anxiety is a risk when treatment ends without a plan.
These two problems are easy to confuse. Anxiety and broken sleep appear on both lists, so it is hard to tell "my body is adjusting" from "my depression is returning" without your doctor, and the right responses differ.
Is this withdrawal? Are antidepressants addictive?
No, discontinuation symptoms are not thought to be a sign of addiction. The paroxetine label states this directly: based on the information so far, these symptoms are not considered the result of drug dependence. The paroxetine and escitalopram labels describe discontinuation symptoms but carry no dependence warning. Benzodiazepines are different: their labels warn that dependence can develop with continued use, so stopping one is planned with that risk in mind; our benzodiazepine guide covers how the benefits and risks are weighed and how a taper works. For antidepressants, discontinuation symptoms are possible without dependence, which is why the labels still require a gradual reduction.
How does tapering work in practice in Japan?
Tapering runs on the visit cycle. Japan introduced a limited refill prescription system in 2022 for stable, unchanged prescriptions, but a taper changes the dose at each step, so it runs on regular visits: each prescription covers a set number of days, and the next step down means seeing your doctor again. The dose steps down at one visit, and you review how it went at the next.
Three things to settle with your doctor:
- The goal. Saying "I would like to work toward stopping this medication" is a normal request, not a challenge to the doctor.
- The first step down. What it will look like, and which symptoms would mean the pace is too fast.
- What to do if symptoms appear between visits. Whether to call, wait, or return to the previous dose.
If a step down turns out to be intolerable, the paroxetine label says to consider going back to the previous dose and then reducing more slowly. That is a normal adjustment, not a failure, and it is a decision to make with your prescriber rather than alone.
How long does coming off take?
There is no fixed timetable. For paroxetine, the label's instruction is to reduce gradually over weeks or months depending on how the patient is doing. The pace is set by how you respond to each reduction. A taper that takes longer than you hoped is not a sign that anything has gone wrong. What matters is that each step is one you tolerate, confirmed at a follow-up visit, with the option to pause or step back built in. How psychiatric medication is prescribed and monitored here is in our guide to psychiatric medication in Japan.
Frequently asked questions
This article is general information, not medical advice for your individual situation. If you're thinking about stopping your antidepressant, please bring it to your prescribing doctor before changing anything.
Medically reviewed by our psychiatrist (M.D.). Updated October 16, 2026.