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Clean both vial stoppers
Intramuscular Injections (IM): Definition : Injected directly into muscle tissue
(7.1) Antibiotics: Thiamine, riboflavin, pyridoxine, niacinamide, and ascorbic acid decrease activities of erythromycin, kanamycin, streptomycin, doxycycline, and lincomycin
Both injection types are far more effective at raising B12 levels than oral supplements, but the best method really depends on your individual needs
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