Blue Pill is another name for Cenforce 100. This is male ED medicine. Purchase from Medzsite pharmacy and enjoy a 20% discount. Cenforce 100 is taken orally 30 minutes before intercourse and should only be used once per day. The dose of sildenafil is determined by the patient's medical condition, sexual activity frequency, and any other drugs he is taking. If the patient's condition does not improve after taking the specified dose of sildenafil, he should contact his doctor.