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Prescription medicine

Thiamine

Thiamine is a prescription medicine. FDA's NDC Directory lists it from 18 generic labelers, and pharmacies paid $2.25 per mL (Thiamine 200 mg/2 mL vial) in the October 7, 2026 NADAC survey.

  • Generic listed

Check it at the source: the thiamine FDA label on DailyMed (effective July 22, 2026, Sagent Pharmaceuticals); every thiamine label on DailyMed.

Highlights of the record

FDA label of July 22, 2026; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026; NADAC October 7, 2026

Used for

From the label: indications and usage

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.

Forms and strengths

  • 100 mg/ml
  • 200 mg/2ml

Injection (solution).

On the market

Generic approvals
18 first June 20, 1972; 12 with a marketed status in Drugs@FDA
Labelers listed (NDC)
18 of which 18 under generic applications, 0 under brand applications, repackagers included

Supply and safety

Pharmacy cost (NADAC)
$2.25 per mL Thiamine 200 mg/2 mL vial
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
2 since 2012 0 Class I among all firms' recalls; latest February 5, 2026; 11 more by firms not listed as its makers
FAERS reports
12,374 through July 30, 2026

What is thiamine used for?

From the label: indications and usage

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. […]

Source: FDA drug label (thiamine hydrochloride), Sagent Pharmaceuticals, effective July 22, 2026 (SPL set 5982cf83-01d6-4acb-8373-339079b8a76e), via openFDA; the full label on DailyMed

Is there a generic for thiamine?

The FDA approved the first generic thiamine on June 20, 1972. 18 generic applications are approved; 12 of them carry a current (not discontinued) marketing status in Drugs@FDA; that status is not evidence that the generic is on sale.

FDA's NDC Directory lists thiamine from 18 labelers under a generic (ANDA) application. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do pharmacies pay for thiamine?

In CMS's NADAC survey of October 7, 2026, pharmacies paid $2.25 per mL (Thiamine 200 mg/2 mL vial), down 18% from $2.73 on October 8, 2025. The chart's scale runs from the lowest to the highest price shown, not from zero. NADAC is what retail pharmacies paid their wholesalers, per unit, in CMS's monthly survey; what a patient pays depends on insurance and the pharmacy.

  • Thiamine 200 mg/2 mL vial (generic)
$3.01
$2.16
September 2024October 2026
NADAC per unit, October 7, 2026
Strength and formBrand or genericPharmacy cost30 tablets, or one pen or vial12-month change
Thiamine 200 mg/2 mL vialGeneric$2.25 per mL$4.49 per vial-18%

Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price

Has thiamine been recalled?

The FDA's Enforcement Report lists 13 recalls naming thiamine since 2012: 0 Class I (the most serious), 12 Class II, 1 Class III; 1 still ongoing. 11 of them are by firms that FDA's NDC Directory does not list as a maker of thiamine and that hold no application for it in Drugs@FDA, such as compounding pharmacies or bulk-ingredient suppliers; the recall notice names the product recalled. A recall names products and lots, not every product of the medicine.

StartedClassCompanyReason
February 5, 2026Class IIFresenius Kabi Compounding, LLCLack of Assurance of Sterility
December 8, 2022Class IIMcGuff Compounding Pharmacy Services, Inc. not a listed makerPresence of Particulate Matter: Presence of foreign substances were reported in vials at the pharmacy.
May 3, 2021Class IIIMylan Institutional LLCLabeling: Incorrect or Missing Lot and/or Exp Date: Cartons with the correct lot number 200906 contain vials labeled with the incorrect lot number 200901.
June 19, 2019Class IIRXQ Compounding LLC not a listed makerLack of Assurance of Sterility
May 13, 2016Class IIMedaus, Inc. not a listed makerLack of Assurance of Sterility
November 10, 2015Class IIWalgreens Infusion Services not a listed makerLack of Assurance of Sterility
October 16, 2015Class IIDowning Labs, LLC not a listed makerLack of Assurance of Sterility
December 26, 2014Class IIWalgreens Infusion Services not a listed makerLack of sterility assurance.

Source: FDA Enforcement Report (drug recalls) via openFDA, through October 8, 2026

What does the thiamine label say about other medicines?

The thiamine label names 1 other medicine in its interaction, contraindication or warning sections. The labels of 17 other medicines name thiamine. The sentences are the labels' own; a label lists what its studies and reports found, not every interaction.

Medicine namedSectionWhat the label says
EpinephrinewarningsTreatment of anaphylactic reactions includes maintaining a patent airway and the use of epinephrine, oxygen, vasopressors, steroids and antihistamines.

Other labels that name thiamine

Check thiamine against other medicines

Source: FDA drug label (thiamine hydrochloride), Sagent Pharmaceuticals, effective July 22, 2026 (SPL set 5982cf83-01d6-4acb-8373-339079b8a76e), via openFDA; the full label on DailyMed

What do FAERS reports show for thiamine?

The FDA Adverse Event Reporting System holds 12,374 reports that list thiamine among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 1,943 are coded as a death and 6,753 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

Reports received each year

The most reported reactions

  • Off Label Use (a use or a product term, not a reaction)972
  • Nausea (named in the label)831
  • Drug Ineffective (a use or a product term, not a reaction)817
  • Dyspnoea791
  • Diarrhoea728
  • Pain711
  • Fatigue683
  • Confusional State653

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

What next?

Thiamine side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other