Comparing Various ED Drugs

Cialis, Levitra, along with Viagra are all in a category of drugs known as PDE-5 inhibitors. These medications work by blocking an enzyme known as phosphodiesterase type five. Additionally, they boost a substance in your body known as nitric oxide. This activity encourages the muscles in your penis to relax. Relaxed muscles allow blood to run easily therefore when you are aroused, you are able to buy an erection. Additionally, it assists you to maintain erection long enough to have sex. Viagra and Levitra stay in the bloodstream of yours for aproximatelly 4 to six hours. Cialis remains in the bloodstream of yours for 17 to eighteen hours or longer. The period of time a drug remains in the system of yours might be crucial in case you are taking different medicines. Below are more basics on each one of these drugs: Brand name Cialis Levitra Viagra What is the generic drug? tadalafil vardenafil sildenafil Is a generic version available? no no no What does it treat? erectile