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Do not exceed labelled dose. Acute and chronic overdose increases risk of adverse effects. Allowance should be made for intake of the vitamins and minerals from all other sources including fortified foods, dietary supplements, and concomitant medications.
Individuals receiving other single vitamins or multivitamin preparations, any other medication, placed on a restricted diet, or those on medical care should first consult a healthcare professional before use of the product.
Intake of the product should be separated from other medications by 4 hours unless otherwise specified.
The product may interfere with laboratory tests resulting in false reading. Inform the physician or healthcare professional when taking this product and laboratory tests are planned.
Vitamin C may interfere with testing kits and meters that measure glucose levels resulting in false readings. Refer to the package insert of the testing kit or the meter for guidance.
Vitamin C increases iron absorption. Individuals with hemochromatosis should use precaution with use of the product and avoid intake of vitamin C >500 mg/day.
Overdose of vitamin C in individuals with glucose-6-phosphate dehydrogenase deficiency (>3 g in children and >15 g in adults) has been associated with hemolytic anemia.
The product is not formulated for treatment of Vitamin B12 deficiency due to atrophic gastritis, disorder of the ileum or pancreas and gastrointestinal malabsorption of vitamin B12 or intrinsic factor deficiency.
For effervescent formulations: Effervescent tablet dosage form contains sodium. This should be taken into consideration by individuals on a controlled sodium diet.
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