Description

Simple

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Clinical

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Overview

Intrinsic factor (IF), also known as gastric intrinsic factor (GIF), is a glycoprotein produced by the parietal cells of the stomach that is necessary for the absorption of vitamin B12 (cobalamin) later on in the small intestine. When vitamin B12 is provided in combination with intrinsic factor, intrinsic factor reduces protease degradation and increases absorption of Vitamin B12.

Intrinsic factor is not currently available in any FDA or Health Canada approved products. However, it is currently in the marketed (but unapproved) product Hematogen in combination with cyanocobalamin (synthetic Vitamin B12), ferrous fumarate, and ascorbic acid for the treatment of anemias responsive to oral iron therapy.

Pharmacology

Indication

Intrinsic factor is not currently available in any FDA or Health Canada approved products. However, it is currently in the marketed (but unapproved) product Hematogen in combination with cyanocobalamin (synthetic Vitamin B12), ferrous fumarate, and ascorbic acid for the treatment of anemias respons... Read more

Pharmacodynamic

Information currently not available.

Mechanism of action

Intrinsic factor (IF), also known as gastric intrinsic factor (GIF), is a glycoprotein produced by the parietal cells of the stomach that is necessary for the absorption of vitamin B12 (cobalamin) later on in the small intestine. When vitamin B12 is provided in combination with intrinsic factor, int... Read more

Absorption

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Protein binding

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Volume of distribution

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Clearance

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Half life

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Route of elimination

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Toxicity

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Adverse Effects

Effect Regions Age Groups Incidences Evidence Type

Contraindications

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Food Interactions

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