Generic name: Dapoxetine (usually supplied as Dapoxetine Hydrochloride)
Drug class: Short-acting Selective Serotonin Reuptake Inhibitor (SSRI) developed specifically for on-demand treatment of premature ejaculation (PE).
Primary indication: On-demand treatment of premature ejaculation in adult men aged 18 to 64, when diagnostic criteria for PE are met (including IELT less than 2 minutes and clinically significant distress).
Common brands: Priligy (originator brand in many markets), plus multiple generic brands in India and other regions.
Chemical structure and classification: Dapoxetine Hydrochloride has a different molecular formula and molecular weight than the dapoxetine base. If you want to publish chemistry details, use the Hydrochloride values (since most tablets are the HCl salt).
Chemical family: Phenylpropylamine derivative (commonly described as such in chemistry references).
Pharmacokinetics: Dapoxetine is designed for on-demand use because it reaches peak levels quickly and clears relatively fast compared with daily SSRIs used for depression.

Key PK points

Time to peak concentration: typically within about 1 to 3 hours

Duration of effect window: commonly described as several hours for on-demand use (often framed as around 4 to 6 hours in patient-facing content)

Metabolism: primarily hepatic, including CYP3A4 pathways; this is why strong CYP3A4 inhibitors are contraindicated

Discovery and development
Dapoxetine was investigated originally in other CNS contexts, and later developed specifically for premature ejaculation as an on-demand SSRI due to its rapid onset and short-acting profile.

Regulatory status and availability

Dapoxetine is approved and marketed in multiple countries as a prescription medicine for PE.

It is not FDA-approved in the United States (so avoid writing FDA-approved for PE in the US).

Tip for your content: instead of stating an exact number of countries (which changes over time), write approved in multiple countries worldwide and not FDA-approved in the US.

What Dapoxetine is used for
Types of PE where it may be prescribed

Lifelong PE

Acquired PE

Situational PE

(Clinically, it should be prescribed only when the patient meets PE diagnostic criteria and has significant distress/impact.)

Mechanism of action
Central serotonergic pathways influence ejaculation. Dapoxetine inhibits serotonin reuptake, increasing serotonin signaling and strengthening inhibitory control over the ejaculatory reflex, helping delay ejaculation during sexual activity.

How to take Dapoxetine
Typical on-demand dosing (general medical labeling language)

Starting dose: 30 mg taken as needed about 1 to 3 hours before sexual activity

If response is insufficient and well tolerated, may increase to a maximum of 60 mg as needed

Max frequency: no more than once every 24 hours

Not intended for continuous daily use

Key benefits patients report in studies and practice

Improved perceived control over ejaculation

Increased ejaculation latency time compared with baseline/placebo

Reduced distress and improved sexual satisfaction

Keep claims conservative (avoid promising exact minutes for every user).

Side effects
Common

Nausea

Dizziness or lightheadedness

Headache

Dry mouth

Insomnia

Important, serious risks to mention responsibly

Syncope (fainting), especially around the first few doses and within hours after dosing

Serotonin syndrome risk if combined with serotonergic drugs

Palpitations or heart rhythm concerns in susceptible patients

Safety and precautions
Who should not use (common contraindication themes from labeling)

Significant cardiac disease or history of syncope

Concomitant use with MAOIs, other SSRIs/SNRIs/TCAs, thioridazine, or other serotonergic agents

Concomitant potent CYP3A4 inhibitors (examples include ketoconazole, ritonavir, etc.)

Moderate to severe hepatic impairment

Alcohol
Avoid alcohol with dapoxetine due to increased risk of neurocognitive effects and syncope.

Combining with ED medicines
Some clinicians may prescribe dapoxetine with PDE5 inhibitors for men who have both PE and ED. Still, your public-facing content should frame this as only under medical supervision, because it can raise side-effect risks (for example, dizziness or low blood pressure), and some labels advise caution.

Clean FAQ (SEO-friendly)
How long does Dapoxetine take to work
Commonly taken 1 to 3 hours before sexual activity.

How often can I take Dapoxetine
Not more than once in 24 hours.

Is Dapoxetine for daily use
No, it is designed for on-demand dosing, not continuous daily use.

Is Dapoxetine FDA-approved in the US
No,