Tadalafil with Dapoxetine is a fixed-dose combination pill that contains two active ingredients: tadalafil (a phosphodiesterase-5 inhibitor) and dapoxetine (a short-acting selective serotonin-reuptake inhibitor). Both agents are approved for the treatment of sexual function disorders, and the combination is intended for men who experience both erectile dysfunction (ED) and premature ejaculation (PE) at the same time. In Hong Kong, this product is available only by prescription and is regulated by the Hong Kong Department of Health.
The tablet is supplied in a single strength of 20 mg tadalafil / 60 mg dapoxetine.
Tadalafil blocks the enzyme phosphodiesterase-5 (PDE5). By inhibiting PDE5, it enhances the accumulation of cyclic guanosine monophosphate (cGMP) in the smooth muscle of the penile arteries, leading to relaxation, increased blood flow, and an erection in response to sexual stimulation. The onset of action is typically within 30 minutes, and the effect can last up to 36 hours.
Dapoxetine selectively inhibits the re-uptake of serotonin (5-HT) at central nervous system synapses. The temporary increase in serotonin levels prolongs the latency to ejaculation by modulating the ejaculatory reflex pathway. Dapoxetine is rapidly absorbed, reaches peak plasma concentrations in about 1-2 hours, and is eliminated within 24 hours, which allows on-demand use before sexual activity.
When taken together, the two mechanisms address the two most common male sexual complaints: the ability to achieve and maintain an erection (tadalafil) and the ability to delay ejaculation (dapoxetine).
Clinical guidelines in Hong Kong recommend this combination for men who have been diagnosed with both ED and PE and for whom monotherapy with either agent alone has not provided adequate symptom control.
If any of these conditions are present, patients should discuss risks with a qualified healthcare provider before initiating therapy.
These effects are usually mild, appear within a few hours of dosing, and resolve without medical intervention.
Any of these symptoms require immediate medical attention.
Major Interactions
Moderate Interactions
Patients should inform their prescriber of all prescription medicines, over-the-counter products, herbal supplements, and recreational drugs before starting therapy.
Dosage adjustments for renal or hepatic impairment should be made by a prescriber; the 20/60 mg tablet is the only strength commercially available.
Regular follow-up appointments (every 3-6 months, or sooner if issues arise) allow the healthcare team to assess efficacy, tolerability, and safety.
This article provides educational information about Tadalafil with Dapoxetine and is not a substitute for professional medical advice. Treatment decisions, including the use of this medication for any indication, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes only and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
The tablet can be taken with or without food. However, a high-fat meal may delay dapoxetine’s absorption, potentially reducing its effectiveness for premature ejaculation if taken shortly before sexual activity.
Tadalafil begins to work within 30 minutes, while dapoxetine reaches peak effect in about 1-2 hours. For most men, taking the tablet approximately 1 hour before planned intercourse provides optimal coverage for both erection and ejaculation control.
Mild, well-controlled hypertension is not an absolute contraindication, but blood pressure should be checked before the first dose and monitored regularly. Nitrate medications must be avoided, as they can cause dangerous drops in blood pressure when combined with tadalafil.
A erection lasting longer than 4 hours (priapism) is a medical emergency. Seek immediate care at the nearest emergency department; prompt treatment reduces the risk of permanent tissue damage.
Moderate alcohol intake is generally tolerated, but excessive drinking can increase the risk of dizziness, hypotension, and reduced sexual performance. If you plan to drink, do so responsibly and observe how your body reacts.
There is no evidence that either tadalafil or dapoxetine adversely impacts sperm production or fertility when used at the approved doses.
Only the 20 mg tadalafil / 60 mg dapoxetine strength is commercially marketed. Physicians may prescribe the individual components separately to adjust dosing if side effects are problematic.
Because tadalafil can affect blood pressure, it is advisable to discontinue the medication at least 24 hours before elective surgery. Discuss timing with your surgeon or anesthesiologist.
Men with diabetes often experience ED and may benefit from tadalafil. Dapoxetine is also safe in diabetic patients, provided there are no contraindicated medications or severe renal impairment. Blood glucose control should be optimized before starting therapy.
The fixed-dose tablet offers convenience by delivering both agents in a single pill, reducing the number of tablets needed. Pharmacologically, the individual components act through distinct pathways, so the therapeutic effect is comparable to taking them separately at equivalent doses.
