Very Serious Question Wasn't Even Aware A Friends Boyfriend Took

Very serious question wasn't even aware a friends boyfriend took Viagra never took Viagra before they were being intimate and he started profusely bleeding out of his penis is that something dangerous and I've also been told he has hepatitis C genotype 4 very concerned can you help especially with With the blood and it being swallowed not realizing it but the Viagra was a possible cause of the bleeding as well as somebody having hepatitis C genotype 4 please advise