Kamagra 50mg is a medication primarily used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate as its active ingredient, which is the same ingredient found in the well-known brand Viagra. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor that works by relaxing the blood vessels in the penis, allowing for increased blood flow. This helps men achieve and maintain an erection when sexually stimulated. The effects of Kamagra 50mg usually last for 4-6 hours, meaning it can help during that time frame, but sexual arousal is still necessary for the medication to work.