Suhagra 100 mg works by increasing blood flow to the penis. It inhibits the enzyme phosphodiesterase type 5 (PDE5), which regulates blood flow in the erectile tissue of the penis. By blocking PDE5, Suhagra 100 mg allows for better blood circulation, leading to a h arder and more sustainable erection.  When taken as prescribed, Suhagra 100 mg can enhance the body's natural response to sexual stimulation. It helps men with ED achieve and maintain a firm erection that is sufficient for sexual intercourse. Suhagra 100 mg typically starts working within 30 to 60 minutes after ingestion when taken on an empty stomach. This quick onset of action allows for spontaneity in sexual activity, as the medication can be taken shortly before engaging in intercourse.