I tried to have sex for the first time tonight. i was unable to get/keep a full erection. i am 19 and unsure whether to take viagra (sildenafil) or not. should i?

Erectile dysfunction: While Viagra (sildenafil) & its competitors are approved to treat erectile dysfunction, it's most likely that you're describing a circumstantial episode given that losing one's virginity can be quite stressful, not at all like what's described in books or shown in movies. In other words, it's unlikely that you need this medication, which is not w/o potential side effects. PS don't forget to wrap it up next tim

Viagra (sildenafil)?: Absolutely not - do not take Viagra (sildenafil). This is only your first time - try again - these tings can take time.