Zhewitra 20 is solely a need for foundation medication; subsequently lacking the dose is rare or minimal. but, skip the dose and await subsequent sexual sex and take it before the subsequent actual sexual intercourse. Zhewitra 20mg pill is used to treat male erectile dysfunction. It will increase blood flow to the penis to assist guys get an erection. Its role is to help loosen up the blood vessels within the penis, permitting blood to flow into your penis when you experience sexually excited.