Erectile dysfunction (ED) is a prevalent condition that affects millions of men, impacting their confidence and quality of life. Viagra and Cialis are two of the most popular and... moreErectile dysfunction (ED) is a prevalent condition that affects millions of men, impacting their confidence and quality of life. Viagra and Cialis are two of the most popular and effective medications available for treating ED. Understanding their differences, mechanisms of action, and benefits can help you choose the right treatment for your needs. This article provides a detailed comparison of Viagra and Cialis to guide you in making an informed decision.
Viagra: The First Oral ED Treatment
Viagra, known generically as sildenafil citrate, was introduced by Pfizer in 1998 as the first oral medication approved by the FDA for the treatment of erectile dysfunction. It has since become a well-known and widely used option.
Mechanism of Action: Viagra works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). PDE5 breaks down cyclic GMP, a molecule that promotes the relaxation of smooth muscle and increases blood flow to the penis. By blocking PDE5, Viagra helps maintain higher levels of cyclic GMP,... less