can you have a reaction to b12 injections Vitamin B-12 Benefits | Uses | Side Effects What Happens When You're Allergic

Always consult a qualified clinician to review your medical history, medications, and risks before starting injections or prescription weight-loss medications

Injection technique and site rotation Proper injection technique affects both comfort and efficacy

Drug Interactions: Certain medications, like metformin and stomach acid reducers (PPIs), can interfere with B12 absorption from food, which may increase the need for injections

Increased intestinal permeability and tight junction alterations in nonalcoholic fatty liver disease (in Eng)

Other possible neurological symptoms are vision changes, confusion, lack of co-ordination, irritability and memory loss