Sildenafil 200mg is a high-dose medication used to treat severe erectile dysfunction (ED). It should be taken orally with a full glass of water, ideally 30 to 60 minutes before planned sexual activity. For best results, take it on an empty stomach, as high-fat meals may delay its effectiveness. Avoid alcohol and grapefruit products, as they can interfere with the drug’s action. Always follow your doctor’s dosage instructions, and never self-increase the dose without medical advice. Sildenafil 200mg requires sexual stimulation to work effectively and will not cause an automatic erection.