Vitamin B complex, folic acid.
Each capsule contains: Folic acid 5 mg, Thiamine Mononitrate (Vit. B1) 200 mg, Pyridoxine Hydrochloride (Vit. B6) 50 mg, Cyanocobalamin (Vit. B12) 500 mcg.
Pharmacology: Pharmacodynamics: Folic acid, Thiamine mononitrate (Vit. B1), Pyridoxine HCl (Vit. B6) and Cyanocobalamin (Vit. B12) are members of the Vitamin B group. All are essential cofactors for various metabolic processes including the synthesis of purine and pyrimidine nucleotides and hence in the synthesis of DNA. Thiamine is primarily involved in energy production in the body, especially in the brain. Vitamin B6 is particularly important in the formation of body proteins and structural compounds. Vitamin B12 is involved in many body process and works very closely with. Folic acid and Vitamin B12 help cells to multiply and are important cofactors for the remethylation of homocysteine to methionine, hence in lowering plasma homocysteine levels.
Pharmacokinetics: Folic Acid, also known as folate, is essential in cell division and DNA synthesis. Folic acid is rapidly absorbed from the gastrointestinal tract, mainly from the duodenum and jejunum. Dietary folates are stated to be less well absorbed from crystalline folic acid. The naturally occurring folates polyglutamates are largely deconjugated and reduced by dihydrofolate reductase in the intestines to form 5-methyltetrahydrofolate, which appears in the portal circulation where it is extensively bound to plasma proteins. Folic acid administered therapeutically enters the portal circulation largely unchanged, since it is a poor substrate for reduction by dihydrofolate reductase. It is converted to the metabolically active form 5-methyltetrahydrofolate in the plasma and liver.
The principal storage site of folate is the liver. It is also actively concentrated in the CSF.
Folate undergoes enterohepatic circulation. Folate metabolites are eliminated in the urine. Folate is distributed into breast milk. Folic acid is removed by hemodialysis.
Small amount of thiamine are well absorbed from the gastrointestinal tract after oral doses, but the absorption of doses larger than about 5 mg is limited. It is widely distributed to most body tissues, and appears in breast milk. Thiamine is not stored to any appreciable extent in the body and amounts in excess of the body's requirements are excreted in the urine unchanged or in metabolites.
Pyridoxine is readily absorbed from the gastrointestinal tract after oral doses and is converted to the active forms pyridoxal phosphate and pyridoxamine phosphate. They are stored mainly in the liver where there is oxidation to 4-pyridoxic acid and other inactive metabolites, which are excreted in the urine.
Vitamin B12 substances bind to intrinsic factor, a glycoprotein secreted by the gastric mucosa, and are then actively absorbed from the gastrointestinal tract. Absorption is impaired in patients with an absence of intrinsic factor, with a malabsorption syndrome or with disease or abnormality of the gut, or after gastrectomy.
Vitamin B12 is stored in the liver, excreted in the bile, and undergoes extensive enterohepatic recycling; part of a dose is excreted in the urine, most of it in the first 8 hours; urinary excretion, however, accounts for only a small fraction in the reduction of total body stores acquired by dietary means. Vitamin B12 diffuses across placenta and also appears in breast milk.
Prophylaxis and treatment of anemia associated with folic acid deficiency. Painful neurological manifestations, neuropathies. Prevention of neural tube defects.
Foliage B-Plus is to be taken orally once daily.
Symptoms of overdose may include stomach pain, nausea, vomiting and diarrhea.
Caution is advised in patients who may have folate dependent tumors.
Pregnancy: Folic acid protects against the development of neural tube detects and supplementation during pregnancy is advised. Vitamin B12 supplementation may also be warranted.
Lactation: Folic acid is excreted into breast milk. No adverse effects have been observed in breast-fed infants whose mothers were receiving folic acid.
Supplementation did not significantly affect thiamine concentration in breast milk of healthy, well-nourished women when compared with those not given thiamine.
Vitamin B6 is excreted into breast milk. While some have expressed concern over the inhibition of breast milk secretion by pyridoxine, others have cautioned that pyridoxine deficiency may cause seizures in the neonate.
Vitamin B12 is distributed into breast milk.
Use of folic acid, Vit. B1, B6 and B12 is considered to be compatible with breast feeding.
Gastrointestinal disturbances and hypersensitivity reactions have been reported rarely.
Folate deficiency states may be produced by drugs such as antiepileptics, oral contraceptives, antituberculous drugs, alcohol and folic acid antagonists such as methotrexate, pyrimethamine, triamterene, trimethoprim, and sulfonamides.
Pyridoxine reduces the effects of levodopa but this does not occur if a dopa decarboxylase inhibitor is also given. Pyridoxine reduces the activity of altretamine. It also decreases serum concentrations of phenobarbital. Many drugs may increase the requirements for pyridoxine such as hydralazine, isoniazid, penecillamine, and oral contraceptives.
Absorption of Vitamin B12 from the gastrointestinal tract may be reduced by neomycin, aminosalicylic acid, histamine H2-antagonists. omeprazole, and colchicine. Serum concentrations may be decreased by use of oral contraceptives.
Store at temperatures not exceeding 30°C.
B03BB51 - folic acid, combinations ; Belongs to the class of folic acid and derivatives. Used in the treatment of anemia.