This approach helps minimize the risk of side effects such as nausea, vomiting, diarrhea, or bloating, and makes the treatment more sustainable
The NHS notes that taking up to 2,000 micrograms daily is unlikely to cause harm in most people, though there is generally no benefit to such excessive amounts without confirmed deficiency
Both use the same 0.9% benzyl alcohol formulation
[PMID: 34571768] PubMed record related to this compound for laboratory literature review
If the patient is suspected to be sensitive to cobalt or other components of cobalamin, an intradermal test dose is recommended
Seek urgent same-day assessment or call 999 for emergency care if experiencing: Severe chest pain Severe shortness of breath Fainting or collapse Acute or rapidly worsening neurological deficits (such as new limb weakness, sudden gait disturbance, or bladder/bowel dysfunction) Persistent or worsening anaemia symptoms despite treatmentincluding breathlessness, chest discomfort, palpitations, or extreme fatigueshould trigger medical review