Tadapox is a combination pill that contains two active ingredients: tadalafil 20 mg and dapoxetine 60 mg.
Tadapox combines two mechanisms that target the two most common male sexual performance concerns:
Tadalafil (PDE5 inhibitor): By blocking the enzyme phosphodiesterase-5, tadalafil increases cyclic guanosine monophosphate (cGMP) levels in the smooth muscle of the penile arteries. Elevated cGMP leads to relaxation of these vessels, allowing increased blood flow into the corpus cavernosum. The result is an erection sufficient for sexual activity when sexual stimulation occurs. Tadalafil has a long half-life (≈ 17 hours), providing a therapeutic window that can span up to 36 hours after a single dose.
Dapoxetine (short-acting SSRI): Dapoxetine inhibits the reuptake of serotonin at neuronal synapses, raising serotonin levels in the central nervous system. This modulation delays the ejaculatory reflex, extending the intravaginal ejaculatory latency time (IELT). Dapoxetine acts quickly, reaching peak plasma concentrations within 1-2 hours, and its effects wear off within 6-12 hours, allowing on-demand use before sexual activity.
By delivering both agents together, Tadapox aims to improve erectile firmness while simultaneously prolonging the time to ejaculation.
Erectile Dysfunction (ED): Tadalafil is approved by the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) for ED and has been adopted in Hong Kong practice guidelines. It is indicated for men who have difficulty achieving or maintaining an erection sufficient for satisfactory sexual performance.
Premature Ejaculation (PE): Dapoxetine received regulatory approval in the European Union and several Asian markets for the treatment of PE in adult men. It is indicated for men who consistently ejaculate within one minute of vaginal penetration or who feel they cannot control ejaculation.
Combined Use: While each component is individually approved for its respective condition, the fixed-dose combination is not currently listed as an approved product in Hong Kong. Healthcare providers may prescribe the combination off-label for men who experience both ED and PE concurrently, after evaluating the risk-benefit profile.
These effects are typically mild, transient, and do not require medical intervention unless they persist or worsen.
Major interactions:
Nitrates → severe hypotension.
Alpha-blockers → additive blood-pressure lowering effect.
CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin) → increase tadalafil plasma levels.
CYP2D6 inhibitors (e.g., fluoxetine, paroxetine) → increase dapoxetine exposure, raising risk of serotonin syndrome.
Moderate interactions:
Other antihypertensives → monitor blood pressure.
Certain antifungals (e.g., itraconazole) → may modestly raise tadalafil levels.
Patients should provide a full medication list, including over-the-counter products, supplements, and herbal preparations, to their prescriber.
Special populations
All dosing decisions must be individualized by a qualified healthcare provider.
Routine laboratory monitoring is not required for short-term use, but periodic review as part of overall health care is recommended.
This article provides educational information about Tadapox and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
Yes, many blood pressure medicines can be used together with tadalafil, but the combination may lower blood pressure further. Your prescriber should review all cardiovascular drugs you are taking and may adjust doses or monitor your blood pressure more closely.
The tablet is generally taken 30 minutes to 2 hours before sexual activity. Dapoxetine reaches peak levels within 1-2 hours, while tadalafil’s effect can begin as early as 30 minutes, offering flexibility based on your schedule.
A heavy, high-fat meal can delay the onset of tadalafil’s action by up to two hours. For more predictable timing, consider taking the tablet with a light meal or on an empty stomach.
Mild (Child-Pugh A) hepatic impairment does not usually require dose changes, but moderate impairment (Child-Pugh B) may necessitate a lower dapoxetine dose. A healthcare professional should evaluate liver function before prescribing.
Yes, but keep the medication in its original packaging with the prescription label. Check the destination country’s regulations regarding PDE5 inhibitors and SSRIs, as some jurisdictions require a physician’s note for customs clearance.
Seek emergency medical care immediately. This condition, known as priapism, requires prompt treatment to prevent permanent tissue damage.
Tadapox is a fixed-dose combination tablet; appearance may differ by manufacturer. In Hong Kong, the pill is typically round, white to off-white, and imprinted with “20/60”. Verify the imprint and packaging before use.
Alcohol can potentiate the blood-pressure-lowering effect of tadalafil and may lessen erectile response. Moderate drinking is usually tolerated, but excessive alcohol consumption should be avoided.
Concurrent use of other serotonergic agents (e.g., other SSRIs, SNRIs, tramadol) raises the risk of serotonin syndrome. Discuss any additional antidepressants with your prescriber before adding Tadapox.
Pricing varies by pharmacy and insurance coverage. While a single combination tablet may be convenient, patients should compare the overall expense of separate tadalafil and dapoxetine prescriptions with their prescriber or pharmacist.
