Neo-Cytamen (Hydroxocobalamin Chloride)

Hydroxocobalamin Chloride, the active ingredient in Neo-Cytamen, is a Vitamin B12 (cobalamin) presented as an injectable solution for intramuscular use. It is employed to treat vitamin B12 deficiency and to bind cyanide in cases of cyanide poisoning in adults and children as indicated by a healthcare professional.

GNH USA supplies Neo-Cytamen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies, clinics and procurement teams worldwide. The company emphasizes quality assurance, regulatory compliance and reliable cold‑chain logistics where required throughout the supply chain.

Neo-Cytamen, a hydroxocobalamin preparation, is used in conditions where vitamin B12 activity or cyanide detoxification is required.

- Vitamin B12 deficiency: Restores normal cobalamin levels, supporting DNA synthesis and red blood cell formation in patients with dietary deficiency, malabsorption, or pernicious anemia. - Cyanide poisoning: Binds cyanide ions to form cyanocobalamin, facilitating rapid detoxification and excretion in acute cyanide exposure. - Megaloblastic anemia: Improves hematologic parameters by correcting cobalamin‑dependent metabolic defects.

Common Side Effects: - Injection site pain: mild to moderate discomfort at the site of administration. - Low‑grade fever: transient temperature elevation within 24 hours. - Headache: mild headache not requiring intervention. - Nausea: occasional feeling of nausea post‑injection.

Serious or Rare Side Effects: - Anaphylaxis: severe allergic reaction requiring immediate medical attention. - Hypotension or severe hypertension: abrupt blood pressure changes. - Stevens‑Johnson syndrome: rare severe skin reaction. - Hemolysis: destruction of red blood cells in susceptible individuals. - Arrhythmia: irregular heart rhythm in rare cases.

Before initiating therapy, assess baseline vitamin B12 status and cyanide exposure risk. - Assess B12 status before use: measure serum cobalamin to confirm deficiency. - Monitor for allergic reactions: observe patient after injection for signs of hypersensitivity. - Use with caution in renal impairment: adjust monitoring and consider renal function. - Avoid in known hypersensitivity to cobalamin compounds: discontinue if reaction occurs. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Hydroxocobalamin may interact with several medications that affect cobalamin metabolism or hemodynamics.

Major Interactions (Avoid): - Methotrexate: may reduce efficacy of cobalamin therapy. - Chloramphenicol: may interfere with cobalamin metabolism. - Nitrous oxide anesthesia: can inactivate vitamin B12, increasing risk of deficiency.

Moderate Interactions (Monitor Closely): - Proton pump inhibitors: may decrease oral absorption (though injection bypasses this route). - Metformin: may lower serum B12 levels, requiring periodic monitoring. - Anticonvulsants (phenytoin, carbamazepine): may affect B12 status and require observation.