Last Updated: 07 01 2008 Email this Article Print this Article IM this Article Syndication: diggdel. Where can get more information? Your pharmacist can provide more information about tamsulosin. Before using Tamsulosin Some medical conditions may interact with Tamsulosin. Tamsulosin may cause dizziness, lightheadedness, or alcohol, hot weather, exercise, or fever may increase these effects. Looking for information but can find it? Someone out there may be able to help you. Always seek the advice of your health care professional if you have any questions about this product or your medical condition. Tamsulosin is used to improve urination in prescription tamsulosin men with benign prostatic hyperplasia enlarged prostate.