Cenforce 100mg is used to treat erectile dysfunction or impotence. The tablet is manufactured by Centurion Laboratories. This drug increases blood flow to the penis and causes strong erection during sexual intercourse and this drug causes very hard erection for a long period of time. cenforce 100 is taken orally with water 1 hour before sexual intercourse. It is advisable to take this medicine once in 4 hours and seek the help of a doctor rather than using this medicine.