Viagra (Sildenafil 50 mg) is primarily used to treat erectile dysfunction (ED) in men. It helps increase blood flow to the penis to help achieve and maintain an erection when sexually stimulated.

• How it works: Sildenafil relaxes blood vessels in the penis, allowing more blood to flow in during sexual arousal.
• Usage: It is taken as needed, usually about 30 minutes to 1 hour before sexual activity.
• Important notes: It does not cause an erection without sexual stimulation and is not a cure for ED but helps manage the condition.
• Other uses: Sometimes, sildenafil is also prescribed for pulmonary arterial hypertension (high blood pressure in the lungs), but the 50 mg tablet is mainly for ED.

Always use it under medical supervision, especially if you have heart problems or take other medications, to avoid potential side effects or interactions. If you experience persistent side effects like headache, dizziness, or visual changes, consult a specialist doctor promptly.