An erection results from an increase in blood flow to the penis. More serious side effects may include a drop in blood pressure or an erection that lasts longer than four hours. Under 25 73 or older Have not had a physical exam in the past 5 years which included a genital exam Any condition where sex is not advised Taking the medicine nitroglycerin or other medicines that contain nitrates Don’t know your blood pressure Low blood pressure or unexplained fainting or dizziness Kidney disease Physical abnormality of the penis, including Peyronie’s disease Your assigned birth sex is female Delivery Services. The same increase in nitric oxide that helps penile muscles relax also opens up blood vessels, leading to a drop in blood pressure. It may be difficult to remain firm despite wanting to have sex. Erectile dysfunction can be caused by a variety of factors , including age, cardiovascular problems, diabetes, and other conditions that affect nerve function or blood flow. Most online providers require a picture of a valid ID, a selfie showing your face, and a recent blood pressure reading taken with a home blood pressure monitor or by a medical provider.The discount plan organization is Hippo Network LLC, One World Trade Center, Suite New York, NY , , help@, . Find the best sildenafil citrate or viagra prices near you now with our cost comparison tool and start saving today. Get erectile dysfunction pills online Get ED medicines delivered from $2/pill with FREE shipping after you complete a simple online consultation. Get started Already a patient? .