METHICOL INJECTION

Indications

• Vitamin B12 deficiency
• Peripheral neuropathy
• Diabetic neuropathy
• Neurological disorders
• Anemia related to vitamin B12 deficiency

Dosage

Children: For children, consult the BNF for Children for appropriate dosing guidelines based on age and clinical condition.

Adults: The usual adult dose for vitamin B12 deficiency is 500 to 1500 micrograms daily, administered intramuscularly or orally, as per clinical need.

Mechanism of action

Mecobalamin acts as a cofactor in the conversion of homocysteine to methionine, thereby playing a significant role in the methylation process necessary for DNA synthesis and repair. It also aids in the maintenance of myelin sheaths in nerve cells, which is vital for proper nerve function and regeneration.

Pharmacodynamics

Mecobalamin enhances cellular energy metabolism and promotes the regeneration of nerve fibers. It influences the synthesis of neurotransmitters and the overall function of the nervous system, reducing symptoms of neuropathy and improving nerve conduction velocities.

Pharmacokinetics

Mecobalamin is rapidly absorbed following intramuscular injection, with peak plasma concentrations occurring within a few hours. It is primarily distributed in tissues, including the liver and kidneys. The drug is metabolized in the liver, and its elimination occurs primarily through urine, with a half-life of several hours.

Adverse effects

• Nausea
• Diarrhea
• Headache
• Dizziness
• Rash
• Pruritus

Precautions

• Use with caution in patients with known hypersensitivity to mecobalamin or any component of the formulation.
• Monitor patients with renal impairment.

Pregnancy

Mecobalamin is generally considered safe during pregnancy, but consult a healthcare provider for individual assessment.

Breast-feeding

Mecobalamin is excreted in breast milk; caution is advised when administered to nursing mothers.

Storage

Store in a cool, dry place away from light. Keep out of reach of children.

Formulations

• Tablets
• Injections