Malegra 50 mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate, which belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Here's how Malegra 50 mg (sildenafil citrate) works: Erectile Dysfunction Treatment: Malegra 50 mg helps men with ED achieve and maintain an erection by increasing blood flow to the penis when sexually stimulated. Pulmonary Arterial Hypertension: In some cases, sildenafil citrate (the active ingredient in Malegra) is also used to treat pulmonary arterial hypertension (PAH), a condition characterized by high blood pressure in the arteries of the lungs. Malegra 50 mg should be taken as prescribed by a healthcare provider. It's important to note that this medication is not an aphrodisiac and does not protect against sexually transmitted diseases.