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Each mL contains: Hydroxocobalamin Acetate equivalent to 1000 mcg Hydroxocobalamin, Sodium Acetate Anhydrous 0.2 mg, Glacial Acetic Acid 0.442 mg, Sodium Chloride 8.2 mg, with Methylparaben 1.5 mg and Propylparaben 0.2 mg as preservatives, in Water for Injection q.s

After the acute repletion phase, therapy is usually transitioned to an oral maintenance multivitamin containing a physiological dose of pyridoxine (2-5 mg daily) for several weeks, along with dietary counseling to prevent recurrence

For example, they can be triggered by trauma and/or infection, and often occur along with other autoimmune conditions

Which of course lead me to wonder, but how does anyone know what the good stuff is