Lovegra 100 mg contains sildenafil 100 mg, a PDE-5 inhibitor. Current Indian medicine listings identify it as a prescription sildenafil product primarily indicated for erectile dysfunction (ED) in men. Sildenafil increases blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. For reliable ED treatment, sildenafil is usually taken about 30–60 minutes before sexual activity, and it should not be taken more than once in 24 hours. A 100 mg dose is the maximum recommended sildenafil dose for ED and is not necessarily the best starting dose for everyone.