Tadact 20 mg is a prescription tablet containing 20 mg of tadalafil, a PDE5 (phosphodiesterase‑5) inhibitor used mainly to treat erectile dysfunction (ED) in men. It works by relaxing blood vessels in the penis, increasing blood flow when sexually stimulated, which helps achieve and maintain an erection during intimacy. Common side effects may include headache, flushing, blurred vision, muscle pain, nausea, or nasal congestion. Most are mild and short‑lived.

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