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A test to check for the ideal 'acid to base' ratio to minimize irritation caused by the injection itself
Not having enough can cause tiredness, brain issues, and big red blood cells
Been using for 3 wks
Last clinically reviewed: 31 July 2026 Clinical information sources NICE NG239 Vitamin B12 deficiency in over 16s: diagnosis and management NHS Vitamin B12 or folate deficiency anaemia NHS Diagnosis NHS Treatment MHRA Vitamin B12 and cobalt allergy advice This page provides general information about the pharmacy service and does not replace personalised advice from a pharmacist, GP or other healthcare professional
The compounded semaglutide with B12 injection makes it convenient to take both drugs together and ensures higher bioavailability than oral B12 supplements, avoiding gastrointestinal absorption issues
Immune system reinforcement
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