side effect from b12 injections How Long Do The Effects Of Last Why do I feel so bad after a B12 injection? B12 sublingual side effects and

Some may experience minor side effects such as: Redness or swelling at the injection site Temporary soreness or bruising Less commonly, side effects could include: Mild headaches Nausea Itchy skin or rash Should you notice any prolonged side effects, we recommend speaking with your GP or calling NHS 111 for advice

Brain function and mood B12 is crucial for healthy nerve function and neurotransmitter production, impacting memory, focus, and mood

kidney Limited information is available on the use of Optineuron Injection in patients with kidney disease

Always consult a qualified healthcare provider before starting, stopping, or changing any medication or treatment