vitamin b + Vitamin C at a glance
Medicine class
Water-soluble vitamin combination
Main licensed role
Rapid correction of severe vitamin B and C depletion or malabsorption
Administration
Diluted and given into a vein by a healthcare professional
Important interaction
Its pyridoxine component can reduce the effect of levodopa
What is vitamin b + Vitamin C used for?
Licensed uses in adults and children include:
Rapid treatment of severe depletion or malabsorption of water-soluble vitamins B and C.
Severe depletion associated with alcohol dependence, particularly where thiamine deficiency creates a risk of Wernicke’s encephalopathy.
Depletion after acute infection or surgery, or in specified psychiatric states.
Maintaining vitamin B and C levels during chronic intermittent haemodialysis.
How does vitamin b + Vitamin C work?
The B vitamins act as cofactors in metabolic reactions involved in releasing energy from nutrients and supporting nervous-system function. Vitamin C participates in redox reactions and tissue maintenance. Intravenous administration restores these water-soluble vitamins when oral absorption is inadequate or rapid replacement is needed.
How to take vitamin b + Vitamin C
This product is not taken by mouth. A healthcare professional combines equal volumes from the two ampoules, dilutes the concentrate in a compatible infusion fluid and gives it by intravenous drip. It must not be given by another route.
Tell staff about previous reactions to injected thiamine or other B vitamins.
The ampoules should be inspected for particles before use.
The diluted preparation should normally be used promptly and must not be frozen.
vitamin b + Vitamin C side effects
Common or expected effects
- Reported effects with unknown frequency include pins and needles, low blood pressure, and pain or swelling at the infusion site.
Get urgent medical advice
- Hypersensitivity or anaphylaxis, which may cause rash, hives, wheezing, breathing difficulty, facial or throat swelling, severe low blood pressure, fainting or loss of consciousness.
vitamin b + Vitamin C in pregnancy
No adverse effects have been reported when used as clinically indicated, but reproductive evidence is limited and potential risk is uncertain. It should be prescribed cautiously in pregnancy when the clinical need justifies intravenous treatment. Tell the treating team if you are pregnant or planning pregnancy.
vitamin b + Vitamin C while breastfeeding
Product-specific breastfeeding evidence is limited. Tell the prescriber or infusion team that you are breastfeeding so they can assess whether intravenous replacement is clinically required.
vitamin b + Vitamin C interactions
Tell the clinical team about all medicines and vitamin injections. Important product-specific interactions include:
Levodopa
The pyridoxine component can interfere with levodopa’s therapeutic effect.
Repeated parenteral thiamine preparations
Previous exposure may sensitise a person, increasing the risk of allergic reactions with subsequent injections.
Common questions about vitamin b + Vitamin C
Answers are fully visible for fast scanning and source review.
What is vitamin B + Vitamin C infusion used for?
It rapidly replaces water-soluble B vitamins and vitamin C in severe depletion or malabsorption and can maintain levels during chronic intermittent haemodialysis.
Is this an ordinary multivitamin?
No. It is a concentrated intravenous prescription product used in supervised clinical care, not a routine oral supplement.
Why is it used in alcohol dependence?
Sources
These sources were used to prepare and review this medicine page.
Prepared and reviewed by the iatroX editorial team.