Originally Posted by JamesNoBrakes

Bad bad idea unless you are suffering from a bomb blast and can get to a field hospital expeditiously. Those things throw all sorts of blood clots in your system, requiring first responders and medical personnel to throw all sorts of blood thinners in your system (kind of the opposite of what you want if you've been shot or have internal bleeding) to prevent the clots from killing you. Assuming you survive from the complications that these incur initially, you'll be on blood thinners for many months after. Wound-clotting agents are designed to clot and stop bleeding when there is massive loss of blood pressure due to a bomb blast that exposes arteries and the capillaries, leaving no way for your body to maintain pressure. They are a last resort and should be treated as such. If you can control bleeding with compression, this is the way to go and won't further endanger you. It's unlikely that a gunshot would involve the kind of external bleeding where these things would work, but mostly, they are dangerous for the average person to be using. They really have no idea what these things do to their body. The fact that they are so readily available on the internet is unfortunate.