Four therapeutic classes can be used for the treatment of BPH: alphablockers, 5 alpha reductase inhibitors (5ARI), muscrinic receptor antagonists, and plant extracts. Two combination therapies have been proven to be efficient: 5ARI – alphablockers, and muscarinic receptor antagonists – alphablockers. Alphablockers have the advantage to be efficient quickly. 5ARI decrease prostate volume. Efficacy of plant extracts is still discussed, but their tolerance is excellent. Muscrinic receptor antagonists can be a viable treatment option for men with predominantly bladder storage symptoms but without bladder outlet obstruction.