Vilitra 40 has a duration of action of up to 4 to 6 hours after taking a dose, allowing for a period of responsiveness to sexual stimulation. Vilitra 40 usually starts working within 30 to 60 minutes after ingestion. However, like other ED medications, sexual stimulation is still necessary for the medication to be effective. Common side effects of vardenafil medications like Vilitra 40 may include headache, flushing, nasal congestion, indigestion, dizziness, and back pain.
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