Medication
Pharmaceutical compound
Tamsulosin Pronunciation [ 1] tam-SOO -lə-sin Trade names Flomax, others AHFS /Drugs.com Monograph MedlinePlus a698012 License data
Pregnancy category Routes of administration By mouth Drug class α1 blocker ATC code Legal status
Bioavailability 100% (by mouth) Metabolism Liver Elimination half-life 9–13 hours Excretion 76% Kidney
(R )-5-(2-{[2-(2-Ethoxyphenoxy)ethyl]amino}propyl)-2-methoxybenzene-1-sulfonamide
CAS Number PubChem CID IUPHAR/BPS DrugBank ChemSpider UNII KEGG ChEBI ChEMBL CompTox Dashboard (EPA ) ECHA InfoCard 100.109.780 Formula C 20 H 28 N 2 O 5 S Molar mass 408.51 g·mol−1 3D model (JSmol )
CCOc1ccccc1OCCN[C@@H](C)Cc1ccc(OC)c(c1)S(=O)(=O)N
InChI=1S/C20H28N2O5S/c1-4-26-17-7-5-6-8-18(17)27-12-11-22-15(2)13-16-9-10-19(25-3)20(14-16)28(21,23)24/h5-10,14-15,22H,4,11-13H2,1-3H3,(H2,21,23,24)/t15-/m1/s1
Y Key:DRHKJLXJIQTDTD-OAHLLOKOSA-N
Y
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Tamsulosin – ARISTO Pharma – 0.4 mg prolonged-release tablets – Urologikum
Tamsulosin , sold under the brand names including Flomax and Contiflo , is a medication used to treat symptomatic benign prostatic hyperplasia (BPH) and chronic prostatitis and to help with the passage of kidney stones .[ 6] [ 7] [ 8] The evidence for benefit with a kidney stone is better when the stone is larger.[ 8] Tamsulosin is taken by mouth.[ 6]
Common side effects include dizziness , headache , insomnia , nausea , blurry vision , and sexual problems .[ 9] [ 6] Other side effects may include feeling lightheaded with standing due to changes in blood pressure, and angioedema .[ 9] Tamsulosin is an alpha blocker and works by relaxing muscles in the prostate.[ 10] Specifically it is an α1 -adrenergic receptor blocker.[ 6]
Tamsulosin was approved for medical use in the United States in 1997.[ 6] It is available as a generic medication .[ 9] In 2022, it was the twentieth most commonly prescribed medication in the United States, with more than 25 million prescriptions.[ 11] [ 12]
^ "Tamsulosin" . Merriam-Webster.com Dictionary . Merriam-Webster.
^ "Product monograph brand safety updates" . Health Canada . February 2024. Retrieved 24 March 2024 .
^ "Flomaxtra XL, 400 micrograms, film-coated prolonged-release tablet – Summary of Product Characteristics (SmPC)" . (emc) . 12 November 2019. Retrieved 2 December 2021 .
^ "Faramsil 400 microgram Prolonged-release Tablets – Summary of Product Characteristics (SmPC)" . (emc) . 4 November 2020. Retrieved 2 December 2021 .
^ "Flomax– tamsulosin hydrochloride capsule" . DailyMed . Retrieved 2 December 2021 .
^ a b c d e "Tamsulosin Hydrochloride Monograph for Professionals" . Drugs.com . AHFS. Retrieved 24 December 2018 .
^ "Prostatitis" . NHS . 19 October 2017. Retrieved 24 December 2018 .
^ a b Wang RC, Smith-Bindman R, Whitaker E, Neilson J, Allen IE, Stoller ML, et al. (March 2017). "Effect of Tamsulosin on Stone Passage for Ureteral Stones: A Systematic Review and Meta-analysis" . Annals of Emergency Medicine . 69 (3): 353–361.e3. doi :10.1016/j.annemergmed.2016.06.044 . PMID 27616037 .
^ a b c British national formulary: BNF 76 (76 ed.). Pharmaceutical Press. 2018. p. 767. ISBN 9780857113382 .
^ Hutchison LC, Sleeper RB (2010). Fundamentals of Geriatric Pharmacotherapy: An Evidence-Based Approach . ASHP. p. 209. ISBN 9781585283057 .
^ "The Top 300 of 2022" . ClinCalc . Archived from the original on 30 August 2024. Retrieved 30 August 2024 .
^ "Tamsulosin Drug Usage Statistics, United States, 2013 - 2022" . ClinCalc . Retrieved 30 August 2024 .