Summary: Erectile dysfunction (ED) is no longer a condition without hope. This review examines the four primary oral medications currently licensed to treat it. Three of these drugs—sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra)—work by relaxing muscles specifically within the penis to aid erection. The fourth, apomorphine, targets receptors in the brain. The verdict? Oral therapy is a safe, effective first-line treatment. While the muscle-relaxing drugs work similarly well, sildenafil has shown better results than the brain-targeting apomorphine.

Oral ED Drugs: Safe, Effective First-Line Treatment Options