Its effects typically begin within 30 to 60 minutes of taking the medication and can last for up to 4 to 5 hours, allowing for a longer window of time for sexual activity. This extended duration of action provides flexibility and spontaneity for men.Vilitra 20 mg works by inhibiting the action of phosphodiesterase type 5 (PDE5), an enzyme that restricts blood flow to the penis. By blocking this enzyme, Vilitra 20 mg promotes better blood circulation to the penis during sexual arousal, helping men achieve and maintain a firm erection.

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