McGuff Pharmaceuticals, Inc. is a Food and Drug Administration inspected sterile liquid fill manufacturer that maintains a tradition of quality and core competency in current Good Manufacturing Practices (cGMP). McGuff Pharmaceuticals develops, registers and manufactures private labels as well as brand and generic drug products under its own label, including the first and only FDA-approved ascorbic acid (Vitamin C) injection, ASCOR®.

For more information, please see our website at Ascor® Ascorbic Acid Injection USP (, call us at (800) 603-4795 or email us at [email protected]

No detectable levels of allergens
No genetically modified organisms
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