Fluid and electrolyte disturbances: Sodium retention Fluid retention Congestive heart failure in susceptible patients Potassium loss Hypokalemic alkalosis Hypertension Musculoskeletal: Muscle weakness Steroid myopathy Loss of muscle mass Osteoporosis Vertebral compression fractures Aseptic necrosis of femoral and humeral heads Pathologic fracture of long bones Gastrointestinal: Peptic ulcer with possible subsequent perforation and hemorrhage Pancreatitis Abdominal distention Ulcerative esophagitis Dermatological: Impaired wound healing Thin fragile skin Facial erythema Increased sweating May suppress reactions to skin tests Petechiae and ecchymoses Neurological: Convulsions Increased intracranial pressure with papilledema (pseudotumor cerebri) usually after treatment Vertigo Headache Ophthalmic: Posterior subcapsular cataracts Increased intraocular pressure Glaucoma Endocrine: Menstrual irregularities Development of cushingoid state Suppression of growth in children Secondary adrenocortical and pituitary unresponsiveness, particularly in times of stress, as in trauma, surgery, or illness Decreased carbohydrate tolerance Manifestations of latent diabetes mellitus Increased requirements for insulin or oral hypoglycemic agents in diabetics Metabolic: Negative nitrogen balance due to protein catabolism Miscellaneous: Hyperpigmentation or hypopigmentation Subcutaneous and cutaneous atrophy Sterile abscess Postinjection flare, following intra-articular use Charcot-like arthropathy Itching, burning, tingling in the ano-genital region A

Spinal discs have an incredibly poor blood supply, a condition known as being 'avascular.' Without robust blood flow, the essential nutrients, oxygen, and growth factors needed for repair just can't get to the injury site efficiently
That specificity is what makes peptide therapy so interesting to longevity physicians and also why medical supervision matters so much
While more expensive than some supplements, many users find the metabolic benefits justify the investment
Vitamin B12 stays in the body for different amounts of time
Vitamin B12 also interacts closely with neurotransmitters within the brain and appears beneficial in Autism