Cyanocobalamin

Cynomin is indicated in Pernicious anemia, Vitamin B12 deficiency due to low intake from food, Thyrotoxicosis, Hemorrhage, Malignancy, Liver or kidney disease, Gastric bypass surgery, total or partial gastrectomy, Gluten enteropathy or sprue, folic acid deficiency, macrocytic anaemia.

Dosage & Administration

Usual Adult Dose for Pernicious Anemia
Initial dose
: 1000 mcg intramuscularly or deep subcutaneous once a day for 6 to 7 days
If clinical improvement and reticulocyte response is seen from the above dosing:
100 mcg every other day for 7 doses, then
100 mcg every 3 to 4 days for 2 to 3 weeks, then
Maintenance dose: 100 to 1000 mcg monthly
Administer concomitant folic acid if needed. Chronic treatment should be done with an oral preparation in patients with normal intestinal absorption.
Usual Adult Dose for B12 Nutritional Deficiency
: 25 to 2000 mcg orally daily
Usual Adult Dose for Schilling Test
: 1000 mcg intramuscularly is the flushing dose
Usual Pediatric Dose for B12 Nutritional Deficiency
: 0.5 to 3 mcg daily

Arthralgia (12%), Dizziness (12%), Headache (12%), Nasopharyngitis (12%), Anaphylaxis, Angioedema, Congestive heart failure, Peripheral vascular disease,Pulmonary edema, Diarrhea, Dyspepsia, Polycythemia vera, Sore throat, Nervousness, Rhinitis, Glossitis, Hypoesthesia

Vitamin B12 (cyanocobalamin) is required for the maintenance of normal erthropoiesis, nucleprotein and myelin synthesis, cell reproduction and normal growth; Coenzyme; metabolic functions include protein synthesis and carbohydrate metabolism. Plays role in cell replication and hematopoiesis.