Over-the-counter ED remedies This content is for educational purposes only and does not replace professional medical advice. Erectile dysfunction (ED) can have many causes; consult a qualified clinician for diagnosis and treatment tailored to you. Table of contents Basics: what it is Symptoms and signs Similar conditions: how to differentiate Diagnosis What usually helps FAQ Sources Basics: what it is Erectile dysfunction (ED) is the ongoing difficulty achieving or maintaining an erection firm enough for satisfactory sexual activity. Over-the-counter (OTC) [...]