vitamin b12 injection every 3 months Rx 3000mcg/ml x 100ml for Horses, Dogs, Cats and Livestock — Jeffers Vitamin B-12 3000 mcg Injection,
Description
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After initial repletion, a maintenance dose is given, often 1,000 mcg intramuscularly every month or every 2 to 3 months, to prevent recurrence of deficiency

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