Thiamine
Vitamin B1, Plain
Sold as METATONE
- Drug class
- Vitamin B1, Plain
- Availability
- Prescription only
- Routes
- Intramuscular, Intravenous
- Markets covered
- 2
- Products on record
- 25
Overview
Thiamine is an active pharmaceutical ingredient in the Vitamin B1, Plain group (A11DA). The information below is compiled per regulator from the product labels on record, with direct links to the original documents.
Regulatory status by market
| Market | Regulator | Products | Last revision |
|---|---|---|---|
| GB United Kingdom | MHRA | 23 | May 29, 2026 |
| US United States | FDA | 2 | September 30, 2025 |
GBUnited Kingdom· MHRA
23 products
Uses
Thiamine deficiency conditions where oral therapy is not possible. Treatment of Wernicke´s encephalopathy associated with Alcohol addiction and/or alcohol withdrawal syndrome and prevention of Wernicke-Korsakoff syndrome. For the treatment of peripheral neuropathy (dry beriberi) and heart failure (wet beriberi) due to thiamine malabsorption.
For the treatment of anorexia – refeeding syndrome.
How to take
USUnited States· FDA
2 products
Uses
INDICATIONS
Thiamine hydrochloride injection is effective for the treatment of thiamine deficiency or beriberi whether of the dry (major symptoms related to the nervous system) or wet (major symptoms related to the cardiovascular system) variety.
Thiamine hydrochloride injection should be used where rapid restoration of thiamine is necessary, as in Wernicke’s encephalopathy, infantile beriberi with acute collapse, cardiovascular disease due to thiamine deficiency, or neuritis of pregnancy if vomiting is severe.
It is also indicated when giving IV dextrose to individuals with marginal thiamine status to avoid precipitation of heart failure. Thiamine hydrochloride injection is also indicated in patients with established thiamine deficiency who cannot take thiamine orally due to coexisting severe anorexia, nausea, vomiting, or malabsorption.
Thiamine hydrochloride injection is not usually indicated for conditions of decreased oral intake or decreased gastrointestinal absorption, because multiple vitamins should usually be given.
Sources & citations
- [1]MHRA (UK) · PL554690002 · revised January 30, 2026
- [2]FDA DailyMed · 0f38c4ba-cebf-49… · revised September 30, 2025 [PDF]
Information on this page is compiled from public regulatory records. Drugvu is not affiliated with any regulator or pharmaceutical manufacturer. This is not medical advice. Always consult a qualified healthcare professional.