Hey bro Gettinbig4261 is right, it's all about the research. Here's another tip...you can also use the Google Search bar on the top right and put in something like viagra or compound/drug of choice as in the following "viagra supplier introduction". This can give you the link to sources for your compound/drug that your looking for. In the supplier intro you can discuss their products. As far Viagra during PCT, it can help, but for me there's a stretch of time where time with your lady seems to be more of a chore than pleasure...it's psychological thing more than physical. That's my take. You can do the same thing in the search I suppose...e.g viagra pct. Good luck.