I would recommend...: Before taking Viagra (sildenafil), (sildenafil) you should be properly evaluated to decide why you want to or need to take Viagra (sildenafil). For a 16-y-o male, you should not need Viagra (sildenafil) to assist / help erection except someone having severe nerve/ circulation disorders. But, clinically, I suspect you may have overindulged in sex - masturbation or intercourse, to the point you have overrun yourself. If so, slow down... Best wish...
Answered 6/17/2014
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5 doctors weighed in across 3 answers
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