does vitamin b12 injection hurt Best Site: Administering B12 Shots Vitamin B12 Injections - Vie
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S.SesmaF.Van SinderenD.VenturaM

Many patients start to feel better within a few days to a week after starting methylcobalamin injections, especially if they were significantly deficient
Are there side effects to B12 shots

Your doctor may decide not to use IV metronidazole if you have uncontrollable high blood pressure (resistant hypertension), congestive heart failure, or significant fluid retention
