Treatment of thiamine deficiency

Adults, the Elderly and Children over three years:

Mild chronic deficiency: 50 mg daily

Severe deficiency: 100 mg three times daily.

Not recommended for children under three years.

Route of administration: oral

Hypersensitivity to Thiamine Hydrochloride or to any of the excipients listed in section 6.1

This medicinal product contains lactose monohydrate. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicine.

The thiamine antagonist's thiosemicarbazone and 5-fluorouracil can neutralise the effect of thiamine. Patients using any of these treatments may need their thiamine dose adjusted.

Thiamine could give false positive results for urobilinogen determination by the Ehrlich's reaction. High doses of thiamine may interfere with spectrophotometric assays of theophylline plasma concentration.

This product is not intended for use in pregnant or lactating women.

No studies on the effect on the ability to drive and use machines have been performed. However, patients should be cautioned to see how they react before driving or operating machinery.

Gastrointestinal disorders:

Mild gastrointestinal events such as nausea, vomiting, diarrhoea, and abdominal pain have been reported. Frequency not known (cannot be estimated from data).

Immune system disorders:

Hypersensitivity reactions have been reported (mainly after parenteral administration).

Allergic and anaphylactic reactions, with symptoms of pruritus, urticaria, itching, hives, angioedema, abdominal pain, respiratory distress, tachycardia, palpitations, and shock have been reported in single cases. Frequency not known (cannot be estimated from data).

Reporting of Suspected Adverse Reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the yellow card scheme at www.mhra.gov.uk/yellowcard.

Overdose has not been reported.

ATC Code: A11DA01

Pharmacotheraputic Group: Vitamin B₁, Plain

Thiamine is an essential co-enzyme for carbohydrate metabolism.

Thiamine is well absorbed from the gastrointestinal tract following oral administration, although the absorption of large doses is limited. It is widely distributed to most body tissues and appears in breast milk. Within the cell, thiamine is mostly present as the diphosphate.

Thiamine is not stored to any appreciable extent in the body; amounts in excess of the body's requirements are excreted in the urine as unchanged thiamine or metabolites.

No relevant data.

Lactose Monohydrate

Maize Starch

Pregelatinised Starch

Magnesium Stearate

Talc

Not applicable.

2 years.

HDPE containers: Discard 100 days after first opening the container.

This medicinal product does not require any special storage conditions.

Pack of 100's and 250's tablets in white opaque HDPE bottle with white polypropylene child resistant cap containing a polyester coil and desiccant container.

Pack of 28's tablets in blisters of Aluminium-PVC/PVDC

Not all pack sizes may be marketed.

None