Thiamine is specifically used in the treatment of the various manifestations of thiamine deficiency such as Beriberi and Wernick's encephalopathy, neuritis associated with pregnancy and pellagra. Supplementary Thiamine may be indicated prophylactically in conditions where there is low dietary intake or impaired gastro intestinal absorption of thiamine (e.g. alcohol) or where requirements are increased (pregnancy, carbohydrate rich diet)
Thiamine Hydrochloride (Vitamin B1) is an essential constituent for the metabolism of carbohydrate and a lot of amino acids. Utilization of pyruvic acid and amino acid in tissue are decreased in Thiamine deficiency. So pyruvic acid and lactic acid are accumulated and cause Beri-beri. In adult, approximately 1 mg of Thiamine per day is completely degraded by the tissues, and this is roughly the minimal daily requirement. Thiamine is well absorbed from the Gastro-intestinal tract and is widely distributed to most body tissues. Excess of the body requirements are excreted in the urine as unchanged or as metabolites.
Prophylaxis: 3 to 10 mg daily. Mild chronic deficiency: 10 to 25 mg daily. Severe deficiency: 200 to 300 mg daily.
Thiamine has no known severe interactions with other drugs.
no absolute contraindication but the risk of anaphylaxis is increased by repeated parenteral administration. Mild allergic phenomena, such as sneezing or mild asthma are warning signs that further may give rise to anaphylactic shock. To avoid this possibility it is advisable to start a second course of injection with a dose considerably lower than that previously used. Because of the above, vitamin B1 injection should not be given intravenously except in the case of comatose patients
heart block and cardiac arrest. Pain or phlebitis may
Safe to neonates, children, pregnant and lactating women and elderly patients.
Thiamine overdose doesn't cause toxicity.
Keep below 30°C temperature, away from light & moisture. Keep out of the reach of children.
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