Phosphodiesterase-5 (PDE-5) is the enzyme that is inhibited by the zhewitra 20mg tablet. To treat erectile dysfunction, it relaxes the muscles in the erection's blood vessels, allowing more blood to flow to the erection. Only when a person is sexually excited will getting an erection assist. When firm combined with arousal stimulation, it promotes blood flow to the erection and causes a long-lasting erection. One oral medication, Vardenafil, safely and efficiently treats male erectile dysfunction with zhewitra 20 mg. Male erectile dysfunction is treated with generic levitra .To assist males in obtaining an erection, it stimulates blood flow to the genital area. It has the function of aiding in the relaxation of the blood vessels in the genital area, enabling blood to flow into the area when you experience erection arousal.
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