Sessions are typically spaced 4 or more weeks apart to allow the skin to fully heal and new collagen to develop between treatments
If you have neurological symptoms (pins and needles, numbness, balance issues), severe fatigue, unexplained weight loss, chest pain, breathlessness, or symptoms that are worsening, you should seek medical assessment promptly.
Hydroxocobalamin 1mg intramuscular injections reactivate metabolic pathways after chronic deficiency, potentially causing temporary symptoms during adjustment Common side effects include injection site pain, headaches, and nausea, typically resolving within 2472 hours Rapid red blood cell production may increase demand for folate and iron, occasionally creating relative deficiencies in these co-factors Serious reactions requiring urgent assessment include difficulty breathing, chest pain, severe weakness, or progressive neurological symptoms Recovery follows a predictable pattern: blood cell improvement within 35 days, haemoglobin normalisation over 12 months, neurological recovery potentially taking several months Table of Contents Why Do I Feel Worse After My B12 Injection
A deficiency can cause a wide range of symptoms, including fatigue, weakness, memory problems, and anemia
