Megalis 20 mg is a prescription medication used to treat erectile dysfunction (ED) in men. It contains Tadalafil, a phosphodiesterase type 5 (PDE5) inhibitor that improves blood flow to the penis, helping men achieve and sustain an erection during sexual stimulation. One of the key benefits of Megalis 20 mg is its long duration of action — it can remain effective for up to 36 hours, allowing for greater spontaneity in sexual activity.

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