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The C9ORF72 repeat expansion may act as a risk factor

Additional testing for endotoxins, heavy metals, and microbial contamination ensures the product meets pharmaceutical-grade standards

Safety-wise, intramuscular B12 is generally well tolerated

If you experience severe or persistent symptoms, difficulty keeping fluids down, chest pain, shortness of breath, swelling of the face or throat, or any other concerning reactions, stop using the medication and seek medical attention promptly

An autosomal recessive form of hereditary axonal motor neuropathy associated with neuromyotonia has been linked to loss-of-function mutations of HINT1, which encodes histidine triad nucleotide-binding protein 1, a type of purine phosphoramidase