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Hydroxocobalamin 1mg intramuscular injections are prescription-only medicines in the UK, indicated for confirmed B12 deficiency or malabsorption conditions such as pernicious anaemia
As an essential nutrient, vitamin B12 plays a vital role in energy production, red blood cell formation, and the healthy functioning of your nervous system
Last reviewed: May 31, 2026 Last updated: May 31, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
Hydration Dehydration is an underappreciated risk during this combination
Vitamin B12 has been found to have a positive effect on the circadian rhythm
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