SN instructed patient regarding new medication Tamsulosin. This medication is used to relieve the symptoms of benign prostatic hyperplasia ( BPH ) such as difficult urination and inability to empty your bladder completely, common symptoms of enlarged prostate. Tamsulosin works by relaxing bladder neck muscles and muscle fibers in the prostate itself and make it easier to urinate. Common side effects include dizziness, nasal congestion, rhinitis, rhinorrhea, sinus congestion and seasonal allergic rhinitis, drowsiness. Take this medication at bedtime to avoid becoming sleepy during the day. This medication may also cause you to become dizzy when standing up from a sitting or lying position, so rise slowly. Call 911 or get immediate emergency help if you have any signs of allergic reaction such as blistering rash, swelling of face; tongue, throat, or difficulty breathing. Patient verbalized understanding of all teaching.