b12 injection overdose symptoms if You Take Too Much Vitamin Vitamin B12: Symptoms, Dosage &

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Medicare Supplement insurance is available to those age 65 and older enrolled in Medicare Parts A and B and, in some states, to those under age 65 eligible for Medicare due to disability or End-Stage Renal disease

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After the appointment I looked up the effect alcohol has on B12 levels and saw that it affects absorption of oral B12 (see below.) I would like to know if it also affects B12 that is injected