Usual Adult Dose for Pernicious Anemia:
Initial dose: 100 mcg intramuscularly or deep subcutaneous once a day for 6 to 7 daysIf 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 monthlyDuration of therapy: LifeComments:-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
 Detailed Cyanocobalamin dosage information
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