Sildenafil was negative in in vitro bacterial and Chinese hamster ovary cell assays to detect mutagenicity, As well as in vitro human lymphocytes and in vivo mouse micronucleus assays to detect clastogenicity. This metabolite includes a PDE selectivity profile much like sildenafil and an in vitro potency for PDE5 roughly https://franciso283ihe8.corpfinwiki.com/user