One reliable ED medicine is Cenforce 150. During sexual excitement, it increases blood flow to the penis, giving males erections that are harder and last longer. While sildenafil citrate only becomes active during foreplay, Cenforce 150 acts upon sexual stimulation. It takes about 30 to 60 minutes for this medication to encourage the appropriate level of erection firmness. For optimal effects, take it after a light meal or on an empty stomach. Its effects may be slowed down by heavy meals. Steer clear of grapefruit juice and alcohol to avoid interactions.