Apcalis SX - effective way to deal with impotency

Apcalis SX is an effective drug for treatment of erectile dysfunction. It contains Tadalafil as an active substance which is a selective inhibitor of phosphodiesterase type 5 (PDE 5). When sexual stimulation causes local release of nitric oxide, inhibition of PDE 5 by Apcalis SX increases levels of cGMP in the cavernous body of penis. Thus arterial smooth muscles relax and blood flows to the tissues of the penis that causes erections. Apcalis SX improves erection and lets achieve a successful sexual intercourse. The drug has been clinically proven to work up to 36 hours

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