http://www.howtolastlongerinbedx.com/tricks-last-longer-in-bed/
Researchers reviewed 14 studies that monitored the effects phosphodiesterase type 5
inhibitors—drugs for erectile dysfunction like Viogra and Levitra—had on men who
experience premature ejaculation (PE). Eleven of the studies showed medication helped
extend the length of the time they could go before reaching climax.
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