Premature Ejaculation · Medication Guide
Dapoxetine in Thailand
What dapoxetine is, how well it works for premature ejaculation, its side effects, and how men in Bangkok get it legally. Premature ejaculation is a common, treatable medical condition, and this is the only medicine developed specifically for it. Reviewed by a licensed physician at a MOPH-registered men's health clinic.
- Taken 1–3 hours before sex
- Thai FDA registered · prescription only
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Medically reviewed by Dr. Sirirat Nakdang (Pong)
Menscape Clinic
Last reviewed
11 July 2026
3×
Longer time to ejaculation
roughly tripled in pooled trials
1–3 h
Taken before sex
on demand, not every day
1×
Maximum per 24 hours
never more than one dose a day
2009
First approved for PE
the first medicine developed for it
Key takeaways
Dapoxetine is the only medicine developed and approved specifically to treat premature ejaculation, taken on demand 1–3 hours before sex rather than daily.
In pooled randomised trials it roughly tripled the average time to ejaculation, from under a minute to about three minutes; it works only on the days you take it.
It is registered with the Thai FDA and prescription-only. Notably it has never been approved in the United States, so many expats first encounter it here.
A doctor must confirm it is suitable. It is not for men with certain heart conditions or on some antidepressants, and it can cause dizziness or fainting.
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What dapoxetine is & how it works
Dapoxetine is an oral prescription medicine used to treat premature ejaculation (PE), one of the most common male sexual health conditions. Unlike other treatments borrowed from psychiatry, it was designed from the start for PE, and it is taken only when needed rather than every day.
Ejaculation is a reflex controlled partly by serotonin signalling in the brain and spinal cord. In men with PE that reflex triggers quickly. Dapoxetine is a short-acting selective serotonin reuptake inhibitor (SSRI): it briefly raises serotonin at nerve junctions, which raises the threshold for the reflex and lengthens the time to ejaculation.
What makes it different from everyday antidepressants is its speed. It is absorbed within 1–2 hours and cleared quickly, so it can be taken 1–3 hours before sex and does not build up in the body the way a daily SSRI does. It manages the symptom on the day it is taken; it is not a cure, and a proper assessment matters because PE can have several causes.
Serotonin controls the reflex
Ejaculation is a spinal reflex modulated by serotonin signalling in the brain and spinal cord.
In PE the reflex fires fast
In men with premature ejaculation the reflex is triggered quickly, often within a minute.¹
Dapoxetine blocks reuptake
Taken 1–3 h before sex, it briefly raises serotonin at nerve junctions.²
The reflex is delayed
A higher threshold lengthens time to ejaculation, then the drug clears quickly.²
02
Getting dapoxetine in Thailand
Thai FDA status
Registered with the Thai FDA and prescription-only, in 30 mg and 60 mg tablets. It is sold in Thailand under brands such as Priligy. Notably, dapoxetine has never been approved in the United States, so many American expats first come across it here.³
Where it's legal to get
From a doctor at a licensed clinic, or dispensed by a licensed pharmacy on a prescription. A teleconsultation with licensed telepharmacy delivery is also legal in Thailand.⁴
For expats & visitors
No Thai residency is required. If you already take dapoxetine abroad, bring your details and a doctor can review continuity of treatment before dispensing.
Thai FDA warning. The regulator repeatedly warns against buying prescription medicines from unlicensed online sellers. Counterfeit sexual health products are common, and nobody is accountable for what you receive.⁵
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Does it work? The evidence
Dapoxetine is the most-studied medicine for premature ejaculation. In pooled phase III randomised, placebo-controlled trials, the average time from penetration to ejaculation increased from under one minute at baseline to about 2.8 minutes on the 30 mg dose and 3.3 minutes on 60 mg, compared with 1.8 minutes on placebo.²
Two things to keep realistic. It does not work for every man, and it is not a cure: it lengthens time to ejaculation on the days you take it, and the effect fades as the drug clears. Many men also improve with behavioural techniques, and the strongest results often come from combining medicine with those techniques rather than relying on either alone.
3.3 min
Dapoxetine 60 mg
average time to ejaculation at study end
1.8 min
Placebo
same measure, no treatment
Pooled phase III randomised, placebo-controlled trials in men with premature ejaculation; baseline average time to ejaculation was under one minute. Individual results vary.
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Side effects & who shouldn't take it
Common side effects
Nausea, dizziness, headache, diarrhoea and trouble sleeping are the most common, are usually mild, and tend to ease with the lower dose. Taking the tablet with a full glass of water and avoiding alcohol reduces them.⁶
Fainting & low blood pressure
Dapoxetine can cause a sharp drop in blood pressure, dizziness or fainting (syncope), most often with the first dose or when mixed with alcohol. If you feel light-headed, lie down and raise your legs, and tell your doctor about any history of fainting.
Not suitable for
Men under 18 or over 64, women, and men with significant heart disease (heart failure, rhythm or conduction problems, ischaemic heart disease) or moderate-to-severe liver disease. Caution too with a history of depression, mania or bipolar disorder.
Dangerous combinations
Never combine it with MAOI antidepressants (or within 14 days of them), thioridazine, other SSRIs or SNRIs, lithium, tramadol or St John's Wort, because of serotonin syndrome risk. Tell your doctor every medicine and supplement you take.
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Alternatives & combinations
Topical · often used
Lidocaine numbing products
Creams, sprays or wipes applied before sex that briefly reduce sensitivity. They can be used on their own or, in some cases, alongside an oral medicine when a doctor advises.
Oral · daily, off-label
Daily SSRIs
Antidepressants such as paroxetine or sertraline, taken every day, also lengthen time to ejaculation. They act more slowly and are used off-label, so a doctor may discuss them if on-demand treatment is not enough.
When ED coexists
Combined treatment
Some men have both premature ejaculation and erectile difficulty. Treating the erectile problem can improve control, and a doctor decides whether combining treatments is safe, since both can lower blood pressure.
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How prescription works at Menscape
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Message us on WhatsApp or LINE
A few minutes on your phone: your symptoms, health history and current medications. It is free and PDPA-protected.
Doctor consultation
A licensed Thai physician reviews your case by video call or in clinic at Asoke, confirms the diagnosis, and checks for heart or drug-interaction risks.
Prescription, if suitable
If the doctor approves, you receive a prescription. The medicine is dispensed by a licensed pharmacy, for pickup or delivery.
Follow-up
A check-in on how it is working and any side effects, so the dose or plan can be adjusted with your doctor over time.
The doctor decides. Starting a conversation is not a commitment and does not guarantee a prescription. If dapoxetine is not right for you, your doctor will explain why and discuss alternatives.
Medically reviewed by
Dr. Sirirat Nakdang (Pong)
Menscape Clinic, Bangkok
“Premature ejaculation is common and treatable, but too many men suffer in silence or self-medicate from the internet. A short assessment lets us find the right approach safely and rule out anything the medicine shouldn't be mixed with.”
- Reviewed
- 11 July 2026
- Next review
- January 2027
- Editorial standard
- Each guide is checked against the Thai FDA label and the primary literature, then reviewed by a licensed physician.
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Frequently asked questions
Can I buy dapoxetine over the counter in Thailand?
No. It is a prescription-only medicine: a doctor must prescribe it and it is dispensed through a licensed pharmacy. Products sold without that oversight are illegal and carry a real counterfeit risk.
How is dapoxetine different from a regular antidepressant?
It is a short-acting SSRI built to be taken on demand, 1–3 hours before sex, rather than every day. It is absorbed and cleared quickly, so it does not accumulate in the body the way a daily antidepressant does.
How well does it actually work?
In pooled trials it roughly tripled the average time to ejaculation, from under a minute to about three minutes. It does not work for every man, and it works only on the days you take it.
When and how do I take it?
One tablet with a full glass of water, 1–3 hours before sex, and no more than once in any 24 hours. Avoid alcohol, which raises the risk of dizziness and fainting.
Why isn't it available in the United States?
The US FDA has never approved dapoxetine for premature ejaculation, although it is registered in Thailand, Europe and much of Asia. That is why many American expats meet it for the first time here.
Can I take it with a medicine for erectile dysfunction?
Sometimes, if you have both conditions, but only under a doctor's guidance, because both can lower blood pressure. Never combine prescription medicines without medical advice.
Is a teleconsultation enough, or do I need to visit the clinic?
For many men a teleconsultation is sufficient and legal in Thailand. Your doctor will ask you to come in to Asoke if an in-person check, such as blood pressure or a heart review, is needed.
Will it cure premature ejaculation?
No. It manages the symptom on the days you take it and does not cure the underlying condition. Pairing it with behavioural techniques often gives the best long-term result.
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References
1. International Society for Sexual Medicine (ISSM). Guidelines for the diagnosis and treatment of premature ejaculation. 2014.
2. Pryor JL, et al. Efficacy and tolerability of dapoxetine in treatment of premature ejaculation: an integrated analysis of two double-blind, randomised controlled trials. Lancet. 2006;368(9539):929-937.
3. Thai Food and Drug Administration — drug registration database, ndi.fda.moph.go.th. Accessed July 2026.
4. Pharmacy Council of Thailand, Notification No. 56/2563 on telepharmacy standards.
5. Thai FDA consumer warnings on purchasing medicines from unlicensed online sellers, oryor.com.
6. Priligy (dapoxetine) Summary of Product Characteristics. electronic Medicines Compendium (emc). Accessed July 2026.
7. McMahon CG, et al. Efficacy and safety of dapoxetine for the treatment of premature ejaculation: integrated analysis of results from five phase 3 trials. J Sex Med. 2011;8(2):524-539.
This guide is educational information, not medical advice. Dapoxetine is a prescription medicine that must be prescribed and monitored by a licensed physician. Premature ejaculation can have several causes, so a proper assessment matters.
This guide is part of the Menscape PE library
Explore the condition hubStruggling with premature ejaculation? Ask a doctor, not a forum.
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