Alpha blockers constitute a variety of drugs which block 1-adrenergic receptors in arteries and smooth muscles. These drugs may be used to treat: , benign prostatic hyperplasia , Lower urinary tract symptoms , Post Transurethral microwave thermotherapy and Transurethral needle ablation of the prostate procedures , high blood pressure . This is not typically the drug of choice unless the patient also has BPH. , symptoms of,a type of prostatitis....