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Tadalafil is a licensed prescription medication used to treat erectile dysfunction in adult men. It belongs to a group of medicines known as PDE-5 inhibitors and is also the active ingredient found in Cialis®.
It is available in multiple strengths, allowing either on-demand use before sexual activity or lower daily dosing for men who prefer greater spontaneity.
Tadalafil works by blocking the enzyme phosphodiesterase type-5 (PDE-5). This helps relax blood vessels and improve blood flow to the penis during sexual stimulation, supporting an erection suitable for sexual activity.
Sexual arousal is still required for tadalafil to be effective.
Unlike sildenafil, which typically lasts 4–6 hours, tadalafil can remain effective for up to 36 hours. This longer duration is why it is sometimes referred to as the “weekend tablet”.
Tadalafil may be prescribed as:
-10mg or 20mg taken as needed before sexual activity
-2.5mg or 5mg taken once daily at the same time each day
Your prescriber will determine the most appropriate dose based on your medical history, response to treatment and lifestyle preferences.
Tadalafil may be suitable for adult men experiencing erectile dysfunction.
It may not be appropriate if you:
-Take nitrate medications
-Have serious heart or liver conditions
-Have recently had a stroke or heart attack
-Have low blood pressure
-Are advised to avoid sexual activity
Suitability is assessed during your online consultation.
Common side effects can include:
-Headache
-Indigestion
-Facial flushing
-Nasal congestion
-Muscle aches
-Back pain
-Dizziness
These are usually mild and temporary. Seek immediate medical attention if you experience chest pain, sudden vision or hearing loss, or an erection lasting longer than four hours.
On-demand dosing:
Daily dosing (2.5mg or 5mg):
Avoid excessive alcohol, as this may increase the risk of side effects and reduce effectiveness.
Always follow the advice provided by your prescriber and the patient information leaflet.
Active ingredient: Tadalafil
Each tablet contains 2.5mg, 5mg, 10mg or 20mg of tadalafil.
Refer to the patient information leaflet for a full list of excipients.
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Tadalafil can remain effective for up to 36 hours. This does not mean a continuous erection, but rather a longer window during which erections may be achieved with sexual stimulation.
Both are PDE-5 inhibitors used to treat erectile dysfunction. Sildenafil typically lasts 4–6 hours, whereas tadalafil can last up to 36 hours. The most suitable option depends on individual preference and medical suitability.
Cialis is the branded version of tadalafil. Both contain the same active ingredient and work in the same way.
Yes, lower doses (2.5mg or 5mg) may be prescribed for daily use. Your prescriber will advise whether this approach is suitable for you.
Small amounts of alcohol may be tolerated, but excessive drinking can increase the risk of side effects such as dizziness and may reduce effectiveness.
