b12 injections where do they inject Shots at Home: How, & How Often to Yourself B12 Shots vs. IV Infusions:

Reported side effects of corticosteroids include: Hydroelectrolytic disorders: sodium retention, potassium loss, hypokalemic alkalosis, fluid retention, congestive heart failure in susceptible patients, hypertension Musculoskeletal: muscle weakness, myopathy, loss of muscle mass, aggravation of myasthenic symptoms in myasthenia gravis, osteoporosis, vertebral compression fractures, aseptic necrosis of the head of the femur and humerus, pathologic fracture of long bones, tendon rupture Dermatological: impaired wound healing, atrophy and thinning of the skin, fragile skin, petechiae and ecchymoses, facial erythema, increased sweating, suppression of reactions to skin tests, allergic dermatitis, urticaria, and angioedema

Vitamin B12 use while breastfeeding

therefore, it dissolves in water and passes through urine when left in the body

While generally safe, common B12 side effects include diarrhea and swelling at the injection site