DESCRIPTION
FOLVITE-D tablet is an orally administered prescription strength folate product for the dietary management of patients with unique nutritional needs requiring increased folate levels, Vitamin D levels, or used in improving the nutritional status of patients with folic acid and vitamin D deficiency. FOLVITE-D should be administered under the supervision of a licensed medical practitioner. Vitamin D3 (cholecalciferol) is a white, crystalline powder, very soluble in water. Folic acid occurs as a yellow or yellowishorange crystalline powder and is very soluble in water and insoluble in alcohol. The structural formula of Vitamin D3 and folic acid are as follows:
| Each Tablet Contains: | |
| Folic Acid | 1000 MCG |
| Vitamin D3 (Cholecalciferol) | 94.375 MCG |
Each tablet contains the following inactive ingredients: Microcrystalline Cellulose, Dicalcium Phosphate, Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide, Stearic acid, HPMC E15, HPMC E5/E6, PEG 8000.
INDICATIONS AND USAGE
FOLVITE-D is indicated for dietary management of patients with unique nutritional needs requiring increased folate levels, Vitamin D levels, or used in improving the nutritional status of patients with folic acid and vitamin D deficiency.
DOSAGE:
Usual adult dose is 1 tablet once or twice daily or as prescribed by a licensed medical practitioner.
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This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent disease.
CLINICAL PHARMACOLOGY
The in vivo synthesis of the major biologically active metabolites of vitamin D occurs in two steps. The first hydroxylation of Vitamin D takes place in the liver (to 25-hydroxyvitamin D) and the second in the kidneys (to 1, 25-dihydroxyvitamin D). Vitamin D metabolites promote the active absorption of calcium and phosphorus by the small intestine, thus elevating serum calcium and phosphate levels sufficiently to permit bone mineralization. Vitamin D metabolites also mobilize calcium and phosphate from bone and probably increase the reabsorption of calcium and perhaps also of phosphate by the renal tubules.
There is a time lag of 10 to 24 hours between the administration of vitamin D and the initiation of its action in the body due to the necessity of synthesis of the active metabolites in the liver and kidneys. Parathyroid hormone is responsible for the regulation of this metabolism in the kidneys.
Folic acid is the precursor of tetrahydrofolic acid, which is involved as a cofactor for transformylation reactions in the biosynthesis of purines and thymidylates of nucleic acids. Impairment of thymidylate synthesis in patients with folic acid deficiency is thought to account for the defective deoxyribonucleic acid (DNA) synthesis that leads to megaloblast formation and megaloblastic and macrocytic anemias.
Folic acid is absorbed rapidly from the small intestine, primarily from the proximal portion. Naturally occurring conjugated folates are reduced enzymatically to folic acid in the gastrointestinal tract prior to absorption. Folic acid appears in the plasma approximately 15 to 30 minutes after an oral dose; peak levels are generally reached within 1 hour.
CONTRAINDCATIONS
This product is contraindicated in patients with a known hypersensitivity to any of the ingredients. FOLVITE-D is contraindicated in patients with hypercalcemia, malabsorption syndrome, abnormal sensitivity to the toxic effects of vitamin D, and hypervitaminosis D.

