How Does Tadalafil Work for Erectile Dysfunction?
Tadalafil belongs to a class of medicines called PDE5 inhibitors. When a man is sexually stimulated, tadalafil relaxes the smooth muscle in the walls of blood vessels in the penis, allowing increased blood flow. This improved circulation helps achieve and sustain a firm erection.
Key facts about tadalafil:
- Sexual stimulation is still required — tadalafil does not cause an automatic erection.
- Effects typically begin within 30 to 60 minutes of taking a tablet.
- Tadalafil can remain effective for up to 36 hours, far longer than other ED treatments.
- Available in 10mg and 20mg doses, as well as a lower daily-dose option (2.5mg or 5mg).
- Generic tadalafil contains the same active ingredient as branded Cialis at a significantly lower cost.
Always follow the recommended dosage and consult a GP or pharmacist if you have an underlying health condition such as heart disease, high blood pressure, or are taking nitrate-based medications.