500 mcg b12 injection Sandoz Vitamin Injectable Solution - 1000 mcg/10 mL Vitamin B12 Injection at a

Common side effects include: Injection site reactions mild pain, redness, swelling, or bruising at the injection site, typically resolving within a few days Headache usually transient and manageable with standard analgesia Nausea or dizziness particularly in the initial treatment phase Skin reactions including itching, mild rash, or acneiform eruptions Temporary urine discolouration red or orange urine is harmless and expected Diarrhoea or flushing usually mild and self-limiting In patients with severe megaloblastic anaemia, low potassium levels (hypokalaemia) may occur during initial intensive treatment, but this is uncommon in routine maintenance therapy

10.1080/07391102.2023.2183714 44 HasanT.AroraR.BansalA

You may experience fatigue or lethargy, among other symptoms, if you have a B12 deficiency

F.et al (2019)

Increased Basal Metabolic Rate (BMR) Basal metabolic rate (BMR) is the number of calories your body burns at rest to maintain essential functions like breathing, circulation, and cellular repair

Many symptoms attributed to 'B12 overdose' in popular media lack robust clinical evidence