LITTLE KNOWN FACTS ABOUT VIAGRA.

Sildenafil was negative in in vitro bacterial and Chinese hamster ovary cell assays to detect mutagenicity, and in vitro human lymphocytes and in vivo mouse micronucleus assays to detect clastogenicity.The most typical Unwanted effects of VIAGRA: headache; flushing; upset abdomen; irregular eyesight, like alterations in coloration vision (for examp