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McGuff Pharmaceuticals will be happy to answer any general product-related questions. However, we cannot recommend treatment or offer medical advice on personal health matters. If you have a question that relates to treatment of a personal medical condition, please contact your physician or healthcare professional.

(800) 603-4795

2921 W MacArthur Blvd.
Suite 141
Santa Ana, CA 92704

4040 W Carriage Drive
Santa Ana, CA 92704
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Indication & Important Safety Information


ASCOR® is vitamin C indicated for the short term (up to 1 week) treatment of scurvy in adult and pediatric patients age 5 months and older for whom oral administration is not possible, insufficient or contraindicated.

Limitations of Use:
ASCOR® is not indicated for treatment of vitamin C deficiency that is not associated with signs and symptoms of scurvy.

Important Safety Information


Contraindications: None.

Administration site reactions include pain and swelling.

ASCOR® should not be rapidly administered. Rapid intravenous administration (>250 mg/minute) of ASCOR may cause temporary faintness or nausea, lethargy, flushing, dizziness, and headache.

Acute and chronic oxalate nephropathy have occurred with prolonged administration of high doses of ascorbic acid. ASCOR® is not indicated for prolonged administration. The maximum recommended duration is one week.

In patients with glucose-6-phosphate dehydrogenase deficiency severe hemolysis has occurred.

Ascorbic acid may interfere with laboratory tests based on oxidation-reduction reactions, including blood and urine glucose testing, nitrite and bilirubin levels, and leucocyte count testing. If possible, laboratory tests based on oxidation-reduction reactions should be delayed until 24 hours after infusion of ASCOR®.

Please see accompanying Full Prescribing Information for ASCOR®.