Malegra 120 (sildenafil 120 mg) is absorbed mainly in the small intestine, not in the stomach. Here's what happens after you swallow it: The tablet dissolves in the stomach. The sildenafil is absorbed through the lining of the small intestine into the bloodstream. It passes through the liver, where some of the drug is metabolized (the "first-pass effect"). The remaining sildenafil circulates in the blood and starts working, usually within 30–60 minutes, although some people notice effects as early as 15–30 minutes. A high-fat meal can delay absorption and make it take longer to start working. A few additional points: Sildenafil is not absorbed under the tongue when taken as a standard tablet. It has a half-life of about 4 hours, but its effects can last for around 4–6 hours in many people. If you're asking because you're wondering how to make Malegra 120 work better or faster, I can also explain the best way to take it (for example, timing it with meals and alcohol).