In Treatment Of Erectile Dysfunction Manforce 100mg Tablet Belongs To A Group Of Medicines Called Pde5 Inhibitors. It Works By Relaxing The Blood Vessels In Your Penis. This Allows Blood To Flow Into The Penis And Produce An Erection When Sexually Aroused. This Medicine Will Only Help Get An Erection If You Are Sexually Stimulated. It Is Very Effective But Needs To Be Taken At Least 30 Minutes Before Sexual Activity. Do Not Take This Medicine If You Also Take Medicines Called Nitrates (often Given For Chest Pain) This Medicine Is Not Intended For Use By Women And Men Should Avoid Using Any Other Medicines To Treat Impotence Without Talking To A Doctor First. It Can Be Dangerous To Take It Along With Medicines Called Nitrates (often Given For Chest Pain Or Angina). Do Not Take This Medicine If You Have Severe Heart Or Liver Problems, Have Recently Had A Stroke Or Heart Attack Or If You Have Low Blood Pressure. Let Your Doctor Know If You Suffer From These Or Any Other Health Problems B