Always consult your doctor or pharmacist before taking vitamin C.
If your condition does not improve or becomes worse, then call your doctor. Driving or operating machinery is okay, as it does not cause ailment.
Do NOT use vitamin C tablet if:
- You are sensitive or allergic to any ingredients present in Vitamin C products.
Use of vitamin C during pregnancy or breast feeding is fine. Vitamin C intake from food is generally considered safe during pregnancy and breast feeding. Use cautiously in greater than recommended dose in pregnant and breastfeeding women. Use vitamin C cautiously in those at risk of high blood pressure during pregnancy.
Refer to your doctor or pharmacist for guidelines on dosage. Do not exceed what they advise.
Usual dose for adults is:
- For men more than 18 years old is 90 milligrams of vitamin C daily;
- For women more than 18 years old, it is 75 milligrams daily;
- For pregnant women more than 18 years old, it is 85 milligrams daily;
- And for breastfeeding women more than 18 years old, it is 120 milligrams daily.
Usual does for children is:
- For children 1-3 years old, it is 15 milligrams;
- For children 4-8 years old, it is 25 milligrams;
- For children 9-13 years old, it is 45 milligrams;
- And for adolescents 14-18 years old, it is 75 milligrams for boys and 65 milligrams for girls.
Vitamin C in high dose may interfere with the blood-thinning effects of aspirin, anticoagulants such as warfarin (Coumadin) or heparin, and anti-platelet drugs such as clopidogrel (Plavix). It may affect the level of blood sugar. Be cautious when using medications that may also affect blood sugar.
Vitamin C in high dose may interfere with the blood-thinning effects of anticoagulant and anti-platelet herbs and supplements.
Consult with your doctor about any medications you are taking, before your treatment with vitamin C.