Vigora 100 is a medication that contains sildenafil citrate as its active ingredient, the same as Viagra. It is primarily used to treat erectile dysfunction (ED) in men. Suitable for men who have difficulty achieving or maintaining an erection sufficient for sexual activity. Those using medications for chest pain (e.g., nitroglycerin) as it can cause a dangerous drop in blood pressure. Those who have had a stroke or heart attack in the past 6 months should consult a doctor. Consult a doctor if you have heart disease, high or low blood pressure, or are taking medications for blood pressure or heart conditions.