My take is ...: For a prior healthy 33-yr man, ED is unlikely and rarely needs Viagra (sildenafil) / Cilalis. So, if you indeed have problem to achieve, or maintain, or sustain erection to complete coitus, seek pro-evaluation and counseling before taking this kind of pill. But one thing very common and important is sex obsession overruns those men's life leading to panic - later ED. So, don't overdo what body can afford...
Answered 11/18/2014
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