Used primarily in the treatment of hypertension and benign prostatic hyperplasia (BPH). It works by relaxing blood vessels and smooth muscles in the prostate and bladder neck, improving urine flow and reducing blood pressure. Due to its selective action on alpha-1 adrenergic receptors, it helps lower systemic vascular resistance, making it effective for managing high blood pressure. Its (R)-enantiomer form may offer improved pharmacokinetic or pharmacodynamic properties, potentially enhancing efficacy or reducing side effects compared to racemic mixtures. Often prescribed for patients with both high blood pressure and prostate issues, allowing for dual therapeutic benefit with a single agent.