Generic Zyloprim is used in the treatment of many symptoms of gout, including acute attacks, tophi (collection of uric acid crystals in the tissues, especially around joints), joint destruction, and uric acid stones. Allopurinol works by reducing uric acid production in the body, thus preventing crystals from forming. 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.