Thiamine 100mg tablets
Available from a pharmacy with pharmacist advice
Thiamine or thiamin, also known as vitamin B1, is a colorless compound with the chemical formula C12H17N4OS.
Official documents, adverse reaction reporting, and safety monitoring
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Official medicine documents
Safety monitoring data
Yellow Card reports
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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
The European Medicines Agency (EMA) collects suspected adverse reaction reports from across the EU/EEA through the EudraVigilance system. Search for safety data on this medicine.
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Suspected adverse reactions reported for Thiamine
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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.
23 branded products available
MHRA licensed products
View all licensed products for Thiamine on the MHRA register
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
Thiamine 100mg tablets
This is the NHS Drug Tariff indicative price used for reimbursement purposes. It may not reflect the price paid by patients or pharmacies.
View full Drug TariffSource: NHS Drug Tariff via NHSBSA. Derived from dm+d VMPP (Virtual Medicinal Product Pack) pricing data. Contains public sector information licensed under the Open Government Licence v3.0.
WHO defined daily dose (DDD)
50 mg
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 BNF/ATC 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(5)
Alcohol-use disorders: diagnosis and management of physical complications (CG100)
Alcohol-use disorders: diagnosis, assessment and management of harmful drinking (high-risk drinking) and alcohol dependence (CG115)
Mitochondrial disorders in children: Co-enzyme Q10 (ES11)
Alcohol-use disorders: diagnosis and management (QS11)
Nutrition support for adults: oral nutrition support, enteral tube feeding and parenteral nutrition (CG32)
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
Pharmacy stock checkers
Search for this medicine at major UK pharmacy chains. These links open the retailer's own website — results depend on their current online catalogue.
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. BNF code shown is the factual mapping value distributed by NHS Business Services Authority (NHSBSA) in the dm+d supplementary file under OGL v3.0; it is not affiliated with, nor licensed from, the publishers of the British National Formulary. 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: 17 · Randomised trials: 7 · 1958–2026
Showing the 50 most relevant studies, sorted by most relevant.
Michael W. Donnino, Lars W. Andersen, Maureen Chase, et al.
Critical Care Medicine, 2016
- Pilot Projects
- Shock, Septic
- Thiamine
D. Maguire, D. Talwar, P. Shiels, et al.
Clinical nutrition ESPEN, 2018
Carlos‐Alberto Calderón‐Ospina, Mauricio O. Nava-Mesa
CNS Neuroscience & Therapeutics, 2019
- Nervous System Physiological Phenomena
- Central Nervous System
- Nervous System Diseases
Shibani Dhir, Maya Tarasenko, Eleonora Napoli, et al.
Frontiers in Psychiatry, 2019
Gary E. Gibson, Joseph A. Hirsch, Pasquale Fonzetti, et al.
Annals of the New York Academy of Sciences, 2016
- Alzheimer Disease
- Dementia
- Glucose
D. Ziegler, Karlheinz Reiners, A. Strom, et al.
Metabolism: clinical and experimental, 2023
BACKGROUND Thiamine (vitamin B1) is an essential cofactor in glucose metabolism, but it remains unclear whether thiamine status is lower in individuals with diabetes compared to individuals with normal glucose metabolism. AIMS We conducted a systematic review and meta-analysis to study whether the circulating concentrations of various thiamine analytes differ between people with and those without diabetes. METHODS PubMed and the Cochrane Central Register of Controlled Trials were searched according to the study protocol. The standardized mean difference (SMD) and 95 % confidence intervals (CI) of thiamine markers between individuals with and without diabetes were used as effect size (random effects model). Subgroup analysis considered albuminuria as an additional variable. RESULTS Out of the 459 articles identified, 24 full-texts were eligible for the systematic review, 20 of which qualified for the data analysis and four were evaluated for coherence. Compared to controls, individuals with diabetes showed lower concentrations of thiamine (pooled estimate SMD [95 % CI]: -0.97 [-1.89, -0.06]), thiamine monophosphate (-1.16 [-1.82, -0.50]), and total thiamine compounds (-1.01 [-1.48, -0.54]). Thiamine diphosphate (-0.72 [-1.54, 0.11] and erythrocyte transketolase activity (-0.42 [-0.90, 0.05]) tended to be lower in persons with diabetes than in controls without reaching statistical significance. Subgroup analysis showed that individuals with diabetes and albuminuria had lower thiamine levels than the controls (-2.68 [-5.34, -0.02]). CONCLUSIONS Diabetes is associated with lower levels of various thiamine markers, suggesting that individuals with diabetes may have higher thiamine requirements than those without diabetes, but well-designed studies are required to confirm these findings.
Abstract licence: CC BY
Upadhyay Z, Sudani S, Jain A
2026
Abin Chandrakumar, Aseem Bhardwaj, Geert W. ‘t Jong
Journal of Basic and Clinical Physiology and Pharmacology, 2018
- Amnesia
- Thiamine
- Thiamine Deficiency
Małgorzata Mrowicka, Jerzy Mrowicki, Grzegorz Dragan, et al.
Bioscience Reports, 2023
- Thiamine Deficiency
- Vitamin B Complex
- Wernicke Encephalopathy
Ankur Jain, R. Mehta, M. Al-Ani, et al.
Journal of cardiac failure, 2015
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
None known
Half-life
Not available
Mechanism
It is thought that the mechanism of action of thiamine on endothelial cells is r…
Food interactions
None known
Human targets
1 target
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
Protein binding
90-94%
Metabolism
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 68 interactions
How the body processes this drug — absorption, distribution, metabolism, and elimination
Proteins and enzymes this drug interacts with in the body
PMID:38547260
By producing thiamine pyrophosphate, a cofactor of the mitochondrial pyruvate dehydrogenase indirectly regulates pyruvate oxidation and lipogenesis .
PMID:38547260
Although it can also catalyze thiamine phosphorylation using ATP and CTP in vitro, it does so with significantly lower efficiency and without physiological relevance evidence PMID:11342111 PMID:38547260
Enzymes involved in drug metabolism — important for understanding drug interactions
Proteins that transport this drug across cell membranes
PMID:9260930 PMID:9687576
Functions as a Na(+)-independent, bidirectional uniporter .
PMID:21128598 PMID:9687576
Cation cellular uptake or release is driven by the electrochemical potential, i.e. membrane potential and concentration gradient .
PMID:15212162 PMID:9260930 PMID:9687576
However, may also engage electroneutral cation exchange when saturating concentrations of cation substrates are reached (By similarity). Predominantly expressed at the basolateral membrane of hepatocytes and proximal tubules and involved in the uptake and disposition of cationic compounds by hepatic and renal clearance from the blood flow .
PMID:15783073
Implicated in monoamine neurotransmitters uptake such as histamine, dopamine, adrenaline/epinephrine, noradrenaline/norepinephrine, serotonin and tyramine, thereby supporting a physiological role in the central nervous system by regulating interstitial concentrations of neurotransmitters .
PMID:16581093 PMID:17460754 PMID:9687576
Also capable of transporting dopaminergic neuromodulators cyclo(his-pro), salsolinol and N-methyl-salsolinol, thereby involved in the maintenance of dopaminergic cell integrity in the central nervous system .
PMID:17460754
Mediates the bidirectional transport of acetylcholine (ACh) at the apical membrane of ciliated cell in airway epithelium, thereby playing a role in luminal release of ACh from bronchial epithelium .
PMID:15817714
Also transports guanidine and endogenous monoamines such as vitamin B1/thiamine, creatinine and N-1-methylnicotinamide (NMN) .
PMID:12089365 PMID:15212162 PMID:17072098 PMID:24961373 PMID:9260930
Mediates the uptake and efflux of quaternary ammonium compound choline .
PMID:9260930
Mediates the bidirectional transport of polyamine agmatine and the uptake of polyamines putrescine and spermidine .
PMID:12538837 PMID:21128598
Able to transport non-amine endogenous compounds such as prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) .
PMID:11907186
Also involved in the uptake of xenobiotic 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP) .
PMID:12395288 PMID:16394027
May contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable)
PMID:11388889 PMID:11408531 PMID:12439218 PMID:12719534 PMID:15389554 PMID:16263091 PMID:16272756 PMID:16581093 PMID:19536068 PMID:21128598 PMID:23680637 PMID:24961373 PMID:34040533 PMID:9187257 PMID:9260930 PMID:9655880
Functions as a pH- and Na(+)-independent, bidirectional transporter (By similarity). Cation cellular uptake or release is driven by the electrochemical potential (i.e. membrane potential and concentration gradient) and substrate selectivity (By similarity). Hydrophobicity is a major requirement for recognition in polyvalent substrates and inhibitors (By similarity).
Primarily expressed at the basolateral membrane of hepatocytes and proximal tubules and involved in the uptake and disposition of cationic compounds by hepatic and renal clearance from the blood flow (By similarity). Most likely functions as an uptake carrier in enterocytes contributing to the intestinal elimination of organic cations from the systemic circulation .
PMID:16263091
Transports endogenous monoamines such as N-1-methylnicotinamide (NMN), guanidine, histamine, neurotransmitters dopamine, serotonin and adrenaline .
PMID:12439218 PMID:24961373 PMID:35469921 PMID:9260930
Also transports natural polyamines such as spermidine, agmatine and putrescine at low affinity, but relatively high turnover .
PMID:21128598
Involved in the hepatic uptake of vitamin B1/thiamine, hence regulating hepatic lipid and energy metabolism .
PMID:24961373
Mediates the bidirectional transport of acetylcholine (ACh) at the apical membrane of ciliated cell in airway epithelium, thereby playing a role in luminal release of ACh from bronchial epithelium .
PMID:15817714
Transports dopaminergic neuromodulators cyclo(his-pro) and salsolinol with lower efficency .
PMID:17460754
Also capable of transporting non-amine endogenous compounds such as prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) .
PMID:11907186
May contribute to the transport of cationic compounds in testes across the blood-testis-barrier (Probable). Also involved in the uptake of xenobiotics tributylmethylammonium (TBuMA), quinidine, N-methyl-quinine (NMQ), N-methyl-quinidine (NMQD) N-(4,4-azo-n-pentyl)-quinuclidine (APQ), azidoprocainamide methoiodide (AMP), N-(4,4-azo-n-pentyl)-21-deoxyajmalinium (APDA) and 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP) PMID:11408531 PMID:15389554 PMID:35469921 PMID:9260930
PMID:10454528 PMID:10525100 PMID:10966938 PMID:17509700 PMID:20722056 PMID:33124720
Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium.
Relative uptake activity ratio of carnitine to TEA is 11.3 .
PMID:10454528 PMID:10525100 PMID:10966938
In intestinal epithelia, transports the quorum-sensing pentapeptide CSF (competence and sporulation factor) from B.subtilis which induces cytoprotective heat shock proteins contributing to intestinal homeostasis .
PMID:18005709
May also contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable)
PMID:10391222 PMID:10542220 PMID:21836059 PMID:33008889 PMID:35512554 PMID:35724964
Mediates H(+)-dependent pyridoxine transport PMID:33008889 PMID:35512554 PMID:35724964
PMID:11731220 PMID:33008889 PMID:35512554 PMID:35724964
Has no folate transport activity .
PMID:11731220
Mediates H(+)-dependent pyridoxine transport PMID:33008889 PMID:35512554 PMID:35724964 PMID:36456177
Proteins that carry this drug through the body
PMID:19021548
Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity).
Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity).
Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli .
PMID:6234017
Does not prevent iron uptake by the bacterial siderophore aerobactin PMID:6234017
Involved compounds
ATC A11DA01
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)
Thiamine
Additional database identifiers
Drugs Product Database (DPD)
5040
Drugs Product Database (DPD)
11170
Drugs Product Database (DPD)
5038
ChemSpider
1098
BindingDB
50373877
PDB
VIB
ZINC
ZINC000000049153
HUGO Gene Nomenclature Committee (HGNC)
HGNC:17358
GenAtlas
TPK1
GeneCards
TPK1
GenBank Gene Database
AB028138
GenBank Protein Database
12248915
UniProt Accession
TPK1_HUMAN
GenBank Gene Database
V01498
UniProt Accession
ODP1_ECOLI
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2644
GeneCards
CYP4B1
UniProt Accession
CP4B1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:17358
GenAtlas
TPK1
GeneCards
TPK1
GenBank Gene Database
AB028138
GenBank Protein Database
12248915
UniProt Accession
TPK1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:3367
GeneCards
ENTPD5
UniProt Accession
ENTP5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:18987
GeneCards
THTPA
UniProt Accession
THTPA_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:399
GenAtlas
ALB
GeneCards
ALB
GenBank Gene Database
V00494
GenBank Protein Database
28590
UniProt Accession
ALBU_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10966
GeneCards
SLC22A2
GenBank Gene Database
X98333
GenBank Protein Database
2281942
Guide to Pharmacology
1020
UniProt Accession
S22A2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10963
GeneCards
SLC22A1
GenBank Gene Database
X98332
GenBank Protein Database
2511670
Guide to Pharmacology
1019
UniProt Accession
S22A1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10969
GenAtlas
SLC22A5
GeneCards
SLC22A5
GenBank Gene Database
AF057164
GenBank Protein Database
3273741
UniProt Accession
S22A5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10938
GeneCards
SLC19A2
GenBank Gene Database
AF160812
GenBank Protein Database
6524689
UniProt Accession
S19A2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:16266
GenAtlas
SLC19A3
GeneCards
SLC19A3
GenBank Gene Database
AF271633
GenBank Protein Database
12483888
UniProt Accession
S19A3_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite the following publications:
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Structured knowledge from the free knowledge base
Linked open data from Wikidata (Q83187), a free and open knowledge base operated by the Wikimedia Foundation. Data is available under the Creative Commons CC0 1.0 Public Domain Dedication.