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Subcutaneous vs
NHS guidelines say those with neurological symptoms should receive more frequent treatment, but some patients complain this is often ignored
Improved mental clarity: B12 is essential for the production of white blood cells, which help your body fight off infections and illnesses
Possible side effects include injection-site reactions, headache, nausea, and fatigue typically mild and resolving quickly
The active effects may be short, but detection windows can vary depending on dosage, frequency of use, metabolism, and testing methods
Peri-lesional injection requires precise anatomical knowledge and a higher technical skill level, and the marginal benefit over subcutaneous delivery is not clearly established
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