Name: Viasil tablets p / o 100 mg cont cell pack No. 4x1 Film-coated tablets, blue in color, with a biconvex surface. The main active ingredient Sildenafil Release form Coated tablets. Dosage 100 mg Special instructions The drug is not intended for use in patients under the age of 18 years. Before you start taking the drug to diagnose erectile dysfunction, determine its possible causes and select adequate methods of treatment, you should collect a complete medical history and conduct a thorough urological and general clinical examination, especially in patients with concomitant cardiovascular diseases, in which increased sexual activity is undesirable (for example, severe forms of coronary heart disease and hypertension). Product facts: Form: Tablets; Dosage: 100mg; Pack size: 100mg.