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Testing found that the expired Hospira vials retained benzyl alcohol concentrations within approximately 4.45.6% of label claim , while a one-year expired vial measured approximately 1.7% below label claim and an unexpired vial measured approximately 1.8% below label claim

The resulting concentration will be 10 mg per mL, which pairs well with a standard insulin syringe for easy measurement

Mechanistic work supports plausibility, but human clinical trials are needed to show meaningful effects on appetite and weight in people without deficiency

Signs include itching, hives, trouble breathing, and swelling of the face, lips, or throat