Tamsulosin 200microgram oral powder sachets
Requires a prescription from a doctor or prescriber
Official documents, adverse reaction reporting, and safety monitoring
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Official medicine documents
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Drug safety updates
MHRA alerts for Tamsulosin
Safety monitoring data
Yellow Card reports
The MHRA Yellow Card scheme collects reports of suspected side effects from healthcare professionals and patients. View the Drug Analysis Profile (iDAP) for real-world adverse reaction data.
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Suspected adverse reactions reported for Tamsulosin
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Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
EudraVigilance
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Suspected adverse reactions reported for Tamsulosin
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EudraVigilance data is published by the European Medicines Agency (EMA). A suspected adverse reaction is not necessarily caused by the medicine.
1 branded products available
WHO defined daily dose (DDD)
400 microgram
Not a recommended dose. The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is a statistical measure used for research and comparison purposes only.
Source: WHO Collaborating Centre for Drug Statistics Methodology, distributed via the NHS dm+d supplementary mapping files (NHSBSA). Contains public sector information licensed under the Open Government Licence v3.0.
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Guidelines from the National Institute for Health and Care Excellence
NICE clinical guidance(2)
Lower urinary tract symptoms in men: management (CG97)
Renal and ureteric stones: assessment and management (NG118)
Source: National Institute for Health and Care Excellence (NICE). Contains public sector information licensed under the Open Government Licence v3.0.
Check stock at pharmacies and supply information
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Supply & safety information
Official UK regulator monitoring and safety alerts
Pharmacy links redirect to the retailer's own search and do not represent real-time stock levels. Shortage and safety information sourced from MHRA drug safety updates (gov.uk, Crown Copyright under OGL v3.0).
Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 29 · Randomised trials: 21 · 2016–2026
Showing the 50 most relevant studies, sorted by most relevant.
J. Furyk, K. Chu, Colin Banks, et al.
Annals of emergency medicine, 2016
Rui Zhou, X. Che, Zhongbao Zhou, et al.
American Journal of Men's Health, 2023
Zhaohui Zhou, Wenyi Gan, Zhiyong Li, et al.
International Journal of Surgery (London, England), 2023
Z. Ye, G. Zeng, Huan Yang, et al.
European urology, 2017
Madarshahian D, Habeeb A, Chandra-Segaran N, et al.
2025
BackgroundUreteral stent insertion, crucial for managing ureteral obstructions, often results in stent-related symptoms (SRSs) adversely affecting patient quality of life. This meta-analysis compares the effectiveness of tamsulosin or mirabegron versus placebo in alleviating these symptoms.MethodsFollowing PRISMA guidelines, we systematically reviewed randomized controlled trials (RCTs) comparing mirabegron or tamsulosin to placebo in managing SRSs. Data sources included PubMed, Embase, Web of Science and CENTRAL, up to November 2023. The inclusion criteria focused on studies reporting on Ureteral Stent Symptom Questionnaire (USSQ), International Prostate Symptom Score (IPSS), quality of life (QoL) assessments, analgesic usage and adverse events. Meta-analysis employed a random-effects model, assessing heterogeneity and publication bias. For assessing the risk of bias in the included randomized trials, we employed the Cochrane Collaboration's tool. This protocol was registered at the International Prospective Register of Systematic Reviews (registration number: CRD42024511842).ResultsSixteen RCTs with 1635 patients met the inclusion criteria. Tamsulosin significantly improved body pain (MD -1.80; 95% CI -3.53 to -0.07; p = 0.04), sexual function (MD -0.63; 95% CI -1.16 to -0.10; p = 0.02) and improved quality of life score (MD -2.36; 95% CI -3.56 to -1.17; p = 0.0001), while mirabegron was more effective in reducing urinary symptoms (MD -8.71; 95% CI -15.81 to -1.61; p = 0.02), enhancing general health (MD -2.58; 95% CI -3.78 to -1.37; p p = 0.008). Both medications significantly reduced total International Prostate Symptom Score (Tamsulosin MD -8.4; 95% CI -15.63 to -1.22; p = 0.02; Mirabegron MD -6.29; 95% CI -8.50 to -4.08; p p = 0.42 and OR 0.93; 95% CI 0.30-2.88; p = 0.89).ConclusionsTamsulosin and mirabegron effectively manage SRSs, with distinct benefits in different symptom domains. This suggests a potential for complementary therapeutic strategies. Future high-quality RCTs are needed to explore their combined efficacy.
Abstract licence: CC BY
Niaga KJK, Rinaldi FX, Nathania N, et al.
2025
PurposeAlpha-blockers and 5-alpha reductase inhibitors (5ARIs) are well-established treatments for symptoms of benign prostatic hyperplasia (BPH). Despite their therapeutic benefits, concerns have been raised regarding a potential association between these medications and an increased risk of dementia. However, current evidence remains inconsistent, highlighting the need for further evaluation. This study aims to assess the potential dementia risk among patients receiving alpha-blockers and 5ARIs.MethodsFollowing PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) guidelines (PROSPERO CRD42025643431), 7 databases were systematically searched through December 2024 for studies examining the association between alpha-blockers or 5ARIs and dementia risk in patients with BPH. Risk of bias was assessed using the ROBINS-I (Risk of Bias in Non-randomized Studies of Interventions) tool. A Bayesian network meta-analysis was performed to estimate risk ratios with 95% credible intervals and to generate surface under the cumulative ranking curve (SUCRA) values.ResultsFive multicenter studies involving 3,650,434 patients (mean age, 71.1 years) and demonstrating an overall low risk of bias were included. The network analysis indicated that neither alpha-blockers nor 5ARIs were significantly associated with an increased risk of dementia compared with no treatment. However, SUCRA values suggested a relatively higher probability of dementia risk for 5ARIs (finasteride and dutasteride), followed by tamsulosin, doxazosin, terazosin, and alfuzosin.ConclusionThis study found no significant association between the use of alpha-blockers or 5ARIs and increased dementia risk. These findings may assist clinicians in making more informed prescribing decisions, particularly for older male patients with BPH. Further large-scale research with extended follow-up periods is needed to strengthen the evidence across all BPH medications.
Abstract licence: CC BY-NC
Ramadhan M, Benzouak T, Ali Y, et al.
2025
- Ureteral Calculi
- Indoles
- Ureteroscopy
Zhang J, Wang D, Chi J, et al.
2025
Sanches M, de Amorim L, Moreira M, et al.
2025
Harahap DH, Adhyatma KP, Elbert E, et al.
2025
- Stents
- Lower Urinary Tract Symptoms
- Solifenacin Succinate
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
64 found
Half-life
3.9 hours
Mechanism
Tamsulosin is a blocker of alpha-1A and alpha-1D adrenoceptors.
Food interactions
1 warning
Human targets
3 targets
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
90%
Half-life
3.9 hours
Protein binding
94%
Volume of distribution
16L
Metabolism
Elimination
97%
Clearance
2.88L/h
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Tamsulosin was first approved by the FDA on April 15, 1997.[L6238]
Tamsulosin is also used off label for the treatment of ureteral stones, prostatitis, and female voiding dysfunction.
[A178339][L6259]
Known interactions with other medicines. Always consult a healthcare professional.
Showing 50 of 1447 interactions
The oral LD50 in rats is 650mg/kg.MSDS
Tamsulosin is not indicated for use in women and no studies have been performed in pregnancy, though animal studies have not shown fetal harm.[Label] Tamsulosin is excreted in the milk of rats but there is no available data on what the effect of this tamsulosin exposure may be.[Label] Animal studies have shown male and female rat fertility is affected by tamsulosin due to impairment of ejaculation and fertilization.[Label] In men, tamsulosin is associated with abnormal ejaculation.[Label] Tamsulosin is not mutagenic but may be carcinogenic at levels above the maximum recommended human dose.[Label] Female rats experience a slight increase in the rates of mammary gland fibroadenomas and adenocarcinomas.[Label]
How the body processes this drug — absorption, distribution, metabolism, and elimination
[A178276]
In addition, tamsulosin can be hydroxylated at a different position by an unknown enzyme to form the M-2 metabolite.
[A178276]
The M-1, M-2, M-3, and M-4 metabolites can be glucuronidated, and the M-1 and M-3 metabolites can undergo sulfate conjugation to form other metabolites before excretion.
[A178321]
Proteins and enzymes this drug interacts with in the body
Enzymes involved in drug metabolism — important for understanding drug interactions
Proteins that carry this drug through the body
Appears to function in modulating the activity of the immune system during the acute-phase reaction
ATC G04CA52
ATC G04CA02
ATC G01AE10
ATC G04CA54
ATC G04CA53
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Tamsulosin
Additional database identifiers
Drugs Product Database (DPD)
11780
ChemSpider
114457
BindingDB
50060964
PDB
JGX
Guide to Pharmacology
488
ZINC
ZINC000001530694
HUGO Gene Nomenclature Committee (HGNC)
HGNC:277
GenAtlas
ADRA1A
GeneCards
ADRA1A
GenBank Gene Database
D25235
GenBank Protein Database
433201
Guide to Pharmacology
22
UniProt Accession
ADA1A_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:280
GenAtlas
ADRA1D
GeneCards
ADRA1D
GenBank Gene Database
M76446
GenBank Protein Database
177807
Guide to Pharmacology
24
UniProt Accession
ADA1D_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:278
GenAtlas
ADRA1B
GeneCards
ADRA1B
GenBank Gene Database
M99589
Guide to Pharmacology
23
UniProt Accession
ADA1B_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2625
GenAtlas
CYP2D6
GeneCards
CYP2D6
GenBank Gene Database
M20403
GenBank Protein Database
181350
Guide to Pharmacology
1329
UniProt Accession
CP2D6_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2637
GenAtlas
CYP3A4
GeneCards
CYP3A4
GenBank Gene Database
M18907
Guide to Pharmacology
1337
UniProt Accession
CP3A4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:8498
GenAtlas
ORM1
GeneCards
ORM1
GenBank Gene Database
X02544
GenBank Protein Database
757907
UniProt Accession
A1AG1_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite:
- DrugBank 6.02024Recommended citationKnox C., Wilson M., Klinger C.M., et alDrugBank 6.0: the DrugBank Knowledgebase for 2024Nucleic Acids Res. 2024 Jan 552(D1):D1265-D1275
- DrugBank 5.02018Wishart D.S., Feunang Y.D., Guo A.C., et alDrugBank 5.0: a major update to the DrugBank database for 2018Nucleic Acids Res. 2017 Nov 846(D1):D1074-D1082
- DrugBank 4.02014Law V., Knox C., Djoumbou Y., et alDrugBank 4.0: shedding new light on drug metabolismNucleic Acids Res. 2014 Jan 142(1):D1091-7
- DrugBank 3.02011Knox C., Law V., Jewison T., et alDrugBank 3.0: a comprehensive resource for 'omics' research on drugsNucleic Acids Res. 2011 Jan39(Database issue):D1035-41
- DrugBank 2.02008Wishart D.S., Knox C., Guo A.C., et alDrugBank: a knowledgebase for drugs, drug actions and drug targets.Nucleic Acids Research2008 Jan36(Database issue):D901-6
- DrugBank 1.02006Wishart D.S., Knox C., Guo A.C., et alDrugBank: a comprehensive resource for in silico drug discovery and exploration.Nucleic Acids Research2006 Jan 134(Database issue):D668-72