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Some will argue that ruminants, horses, and rabbits do not need external supplementation
A mecobalamin 1500 mcg injection and a methylcobalamin 1500 mcg injection contain the same amount of active substance
Tiaminal B12 Injection Protocols for Dual Deficiencies Tiaminal B12 injection helps those with both vitamin B12 and thiamine deficiencies
The first dose is usually 1000 mcg (1 mg)
A B12 shot is a quick intramuscular injection of vitamin B12 (cobalamin) that bypasses the stomach acid, liver metabolism, and intestinal absorption issues that limit oral B12 to roughly 1% bioavailability in most adults
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