Cenforce 200 mg is a prescription medication that can help treat erectile dysfunction. It is also prescribed for patients with pulmonary arterial hypertension. The drug contains the active ingredient sildenafil citrate. The pill must be taken before a sexual activity to achieve an erection. To get the most benefit from this medication, you should take two to four tablets every six hours. If you miss a dose, do not compensate it by taking more than one tablet. Taking too much can lead to serious health problems.