Its effects often last for 4 to 5 hours. That means eating healthy foods, exercising, getting good sleep, limiting stress, and treating other health conditions that might cause ED, like high blood pressure, heart disease, diabetes, obesity, and low testosterone, Dr. This boosts blood flow and helps you get an erection from sexual activity. Clinical trials for MED found minimal side effects. There were some reports of headaches and nausea, however. Pearlman says the availability of an easy-to-access treatment for men dealing with ED is welcome news. As part of the sale, it is recommended that you document this with your GP and have a health-check within 6 months if the regular need for the medication is required.Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial . The 7 Best Over the Counter ED Medications August 23, Medically reviewed by David Culpepper, MD Erectile dysfunction is a frustrating, sensitive experience for any . Health There’s a New Over-the-Counter ED Drug. Should You Be Taking It? Doctors say it could be a “game-changer.” By Erica Sweeney Published: Save Article .