Hydroxocobalamin, the form most commonly used in the UK, may cause: Injection site reactions (pain, redness, or swelling) Temporary reddish discolouration of urine Rarely, hypersensitivity reactions Very rarely, hypokalaemia in severely deficient patients when treatment is initiated (potassium levels should be monitored in severe deficiency) B12 injections are considered very safe, with no upper tolerable limit established, as excess B12 is excreted in urine
In contrast, GPx-1-overexpressing mice are partially protected from dopaminergic damage in response to 6-hydroxydopamine-induced toxicity (29)
Together, Nutrined and Researched Nutritionals reflect an evidence-led approach to supplementation, combining rigorous manufacturing with research-informed formulation
Increased oxidative stress suggested by low serum vitamin e concentrations in patients with chronic fatigue syndrome
DOI: 10.1016/S0940-2993(99)80074-8