Cenforce D is not effective without ***** stimulation. Cenforce D is typically a combination of: Sildenafil — helps increase blood flow to the ***** Dapoxetine — helps delay ***** in men with premature ***** Sildenafil does not create an automatic erection. It helps the body respond to ***** arousal by enhancing the natural erection process. You still need ***** stimulation (such as ***** thoughts, touch, or arousal) for an erection to occur. Dapoxetine also does not increase ***** desire or cause an erection; it mainly affects ***** timing. Avoid taking Cenforce D with: Nitrate heart medicines (such as nitroglycerin) Other ED medicines unless advised by a healthcare professional If you have trouble getting an erection even with stimulation, that may suggest another factor (such as medication effects, stress, hormones, or health conditions) that may need attention.