Source:http://linkedlifedata.com/resource/umls/id/C0771774
PDQ: The hydrochloride salt of tamsulosin, a sulfonamide derivative with adrenergic antagonist activity. Tamsulosin selectivity binds to and blocks the activity of alpha1 adrenoreceptors in the human prostate and bladder neck; blockade of these adrenoceptors can cause smooth muscle in the prostate and bladder neck to relax, resulting in an improvement in urine flow rate. Check for "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=479148&idtype=1" active clinical trials or "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=479148&idtype=1&closed=1" closed clinical trials using this agent. ("http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C29486" NCI Thesaurus),NCI: A drug used to treat urinary problems caused by an enlarged prostate. Flomax relaxes the muscles of the prostate and bladder, which helps the flow of urine. It is a type of alpha blocker.,NCI: The hydrochloride salt of tamsulosin, a sulfonamide derivative with adrenergic antagonist activity. Tam