Under these conditions, reconstituted material is generally considered stable for up to 30 days
Side effects from B12 injections include: Dizziness Headache Nausea Diarrhoea Skin irritation Fatigue A tingling sensation in hands or feet
If you experience any signs of an allergic reaction - such as a rash, unusual itching, or swelling of your face, tongue or throat - seek emergency care right away
Every vial is sealed according to pharmaceutical manufacturing standards and tested for sterility before distribution

References Journal of Endocrinology & Metabolism (2014) Safety and metabolism of AOD9604: novel nutraceutical ingredient for improved metabolic health Journal of Clinical Endocrinology & Metabolism (PubMed) Prolonged stimulation of GH and IGF-I secretion by CJC-1295 in healthy adults European Journal of Endocrinology (PubMed) Ipamorelin: the first selective growth hormone secretagogue Translational Andrology and Urology (PMC) Role of growth hormone secretagogues in body composition management Endocrinology (OUP) hGH and AOD-9604: lipid metabolism and beta-adrenergic pathway insights CDC Preventing unsafe injection practices: multi-dose vial handling guidelines Journal of Endocrinology & Metabolism (2013) Safety and tolerability of the hexadecapeptide AOD9604 in humans Obesity Pharmacotherapy Review (PMC) AOD-9604 clinical trial overview and weight loss outcomes Subcutaneous Drug Injection Review (PMC) Pharmacologic considerations of the subcutaneous route CDC Vaccine administration: subcutaneous route (angle/site guidance) MedlinePlus Subcutaneous injections: patient instructions and technique NCBI Bookshelf Best practices for injection: asepsis, preparation, and administration Additional Research and Background These sources provide related context and are not presented as support for a specific statement above

The vitamin B12 deficiency involved in pernicious anemia is not brought on by inadequate diet, but rather by a relatively rare condition that inhibits the absorption of vitamin B12 in the gut, per MedlinePlus Medical Encyclopedia