This medication is used to treat male and female impotence. Sildenafil citrate, a component in this medication, is used to improve blood flow to men's penile tissues. Our site offers Cenforce for online purchase. This medication takes about 30 minutes to take effect. When having sex, this medication helps males achieve a hard erection. You should only take one dose of this medication every day. For guys over the age of 18, this medication is prescribed. This medication can be used either before or after food. Avoid taking this medication with cold or fatty foods as they will lessen its effectiveness.