Active Substance: Sildenafil Citrate Names: Ciales, Sildenafil, Viagra.
SP Agra known as Viagra is used to treat erectile dysfunction in men.
Dosage: 1 tab of 100 mg. The effect starts after 30 minutes after the tab is taken and remain active for 4-6 hours.
Side Effects: heartburn, headaches, flushed skin, in rare cases prolonged erection, that can damage the penis.
It is not recommended to be used in case of cardiovascular diseases and if nitroglycerin is used.