Vitamin B12 Injection Dose for Adults: 7 Key Facts on Dosage & Frequency Liv Hospital Vitamin B12 Shots: Uses, Intake Levels, and Safety Cyanocobalamin (B12) Products American Regent Mecobalamin 1500mcg (Vitamin B12) Injection Prefilled glass Syringe ZYOVIT12 AQ PFS at 186.56 piece Ahmedabad ID: 2855242980230 Deltoid Muscle Injection The deltoid muscle is a common site for intramuscular (IM) injections, especially vaccines! What gauge needle do you use for an IM injection? Answer in the comments! #medicationadministration #IMinjection # Figure. Subcutaneous injection into the deltoid area The Australian Immunisation Handbook