Generic Trental is used to treat intermittent claudication (pain, cramping, numbness, or weakness in the foot, hip, thigh, or buttocks) in certain patients. It works by thinning the blood and improving red blood cell flexibility, causing the blood to flow more freely through the veins. More info »
Regarding the effect: I do notice an increase in bloodflow and a better
stamina using the pills (I use 50mg). A side-effect I have noticed is that
my nose clogs up so I seem like I have a cold for an hour or so after taking
one pill. No other side-effects than that.