Vilitra (which contains vardenafil) is a medication used to treat erectile dysfunction. Generally: Onset of action: It usually starts working within 30 to 60 minutes after oral intake. Peak effect: Maximum effectiveness is often reached around 60 to 90 minutes. Factors affecting onset: Taking it on an empty stomach can make it work faster, whereas a heavy or high-fat meal can delay absorption. It’s important to note that sexual stimulation is required for the medication to work—it won’t cause an automatic erection. Vilitra is a brand name for vardenafil, a medication used to treat erectile dysfunction (ED). Here’s a clear overview: How it works: Vilitra relaxes blood vessels in the penis, increasing blood flow during sexual arousal. Sexual stimulation is required; it does not cause spontaneous erections. Dosage: Commonly available in 5 mg, 10 mg, or 20 mg tablets. The typical starting dose is 10 mg, taken about 30–60 minutes before sexual activity. The dose can be adjusted based on effectiveness and tolerance. Onset and Duration: Onset: Usually 30–60 minutes. Peak effect: Around 60–90 minutes. Duration: Effects can last up to 4–5 hours. Tips for best results: Take on an empty stomach for faster effect. Avoid excessive alcohol, as it can reduce effectiveness. Do not take more than one dose per day. Safety: Not recommended with nitrates (for chest pain) due to risk of severe blood pressure drop. Common side effects: headache, flushing, dizziness, nasal congestion. If you want, I can also explain how Vilitra compares to other ED medications like Viagra or Cialis in terms of speed and duration.