how to give b12 injection im Choosing the Right Needle and Syringe for Injections: A Complete Guide How to Administer B12 Injections
Description
There is not much direct clinical evidence that B12 supplementation can reduce systemic histamine levels or end HIT

Switch to a non-oral contraceptive method, or add a barrier method of contraception for 4 weeks after starting medication and for 4 weeks after each dose escalation until you reach a maintenance dose

doi: 10.1038/nrd3701

Medical professionals evaluate these variables to recommend the most effective treatment approach for each patient's unique circumstances
