Caverta 100 mg, produced by Ranbaxy, is a PDE‑5 inhibitor used to treat erectile dysfunction (ED). It helps men achieve and maintain an erection by enhancing blood flow to the penis when sexually aroused. The medication is usually taken 30–60 minutes before sexual activity, with effects lasting around 4–6 hours, similar to other sildenafil preparations. It shares common side effects—such as headache, flushing, indigestion, and nasal congestion—and should be avoided in combination with nitrates due to potential for severe hypotension.