b12 injections cvs Cyanocobalamin Injection, 1000 mcg/mL 1mL Vial or subcutaneously CVS Health Raspberry Vitamin B12

The head-by-head comparison between the three interventions was made only in one paper of the included studies

Standard dosing Daily dose: 300-600mcg per day Injection frequency: Once daily, preferably in the morning on an empty stomach Administration route: Subcutaneous injection Most users start at 300mcg to assess tolerance, then increase to 500-600mcg if the lower dose is well-tolerated but results are modest

Temporarily discontinuing self-initiated supplements whilst awaiting medical review is reasonable if symptoms are troublesome, particularly if you began supplementation without confirmed deficiency

If you're severely deficient, your provider might recommend injections every other day for 1-2 weeks