Zenegra 50 mg is a prescription tablet containing sildenafil citrate used to treat erectile dysfunction (impotence) in adult men. It belongs to a class of drugs called phosphodiesterase type 5 (PDE‑5) inhibitors, which work by relaxing blood vessels in the ***** to improve blood flow and help achieve or maintain an erection when *****ly stimulated. The manufacturer of Zenegra 50 mg is Alkem Laboratories Ltd, an established Indian pharmaceutical company based in Mumbai, India. Alkem produces and markets this branded generic under the ZENEGRA name with sildenafil as the active ingredient. Alkem Laboratories Ltd is a major Indian drugmaker involved in the development, manufacturing, and marketing of a broad range of pharmaceutical products, including branded generics like Zenegra. The company operates manufacturing facilities in India and adheres to regulatory and quality standards for medicines distributed domestically and internationally.