Viagra vs. Levitra

Difference Between Viagra and Levitra

Viagra and Levitra are drugs to combat erectile dysfunction. Both belong to the class of PDE-5 inhibitors that are approved by FDA. Viagra is more popular among the lot. The mechanism behind these drugs is the same. They help increase the blood flow and cause erection.

Viagra

The enclosure chemical Viagra is sildenafil citrate. The drug takes half an hour to begin his course of action and effects last for about roughly four hours. The dosage required to receive the biological action is higher. This is the first approved drug from the PDE-5 inhibitors.

The PDE-5 inhibitors inhibit the action of phosphodiesterase type 5 causes the degradation of cyclic GMP in smooth muscle cells. The enzyme is present in smooth muscle cells of the penis as well as the arterial lining of the lungs. Now we know that the drug is effective in the treatment of pulmonary hypertension as well.

Levitra

Levitra is the brand name for vardenafil hydrochloride. The drug is mainly used to treat erectile dysfunction and it was announced that the effects are long lasting. The time for the start of biological activity is low. The drug is effective in smaller doses of 10-20 mg. Cons-indications and adverse effects are known to be reported.

 

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