It lasts 4 to 5 hours, or longer if you have mild to moderate ED. When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse. Being overweight can cause — or worsen — erectile dysfunction. What to expect from your doctor Your doctor is likely to ask you a number of questions. Make a list of all medications, vitamins, herbal remedies and supplements you take. Methodology We researched 19 online platforms for erectile dysfunction treatment to learn more about the process of ordering ED pills online.By Ginger Skinner Last updated: June 14, If you’re looking for a less costly Viagra, you might want to ask your doctor about sildenafil. It’s the active ingredient in both . ED Surgery. Cialis, Levitra, Staxyn, and Viagra to Treat ED. Alprostadil for ED. New ED Treatments. Testosterone Replacement Therapy for ED. Alternative Remedies for ED. . Fastest Delivery: Blink Health: Sesame Sign Up Now Key Specs Cost: Consultation prices vary based on the prescriber; $5 generic prescriptions Medical Consultation Required: .