About ascorbic acid
Water-soluble vitamin and antioxidant
Used for
- Prevention and treatment of vitamin C deficiency, including scurvy
- Supplementation when dietary vitamin C intake is insufficient
Usual adult dose
For deficiency, commonly 100–500 mg daily; dose and duration depend on severity.
Usual dose in children
For deficiency, commonly 100–300 mg daily; dosing depends on age and severity.
Common side effects
- Nausea or stomach discomfort
- Diarrhea
- Heartburn
Important warnings
- High doses may increase kidney-stone risk, especially with kidney disease.
- Use caution with iron-overload disorders; vitamin C increases iron absorption.
- Chewable tablets may affect tooth enamel; rinse the mouth afterward.
Pregnancy
Vitamin C is generally safe at recommended dietary amounts; high-dose supplements require clinical guidance.
Breastfeeding
Generally compatible at recommended dietary amounts; high-dose supplements require clinical guidance.
Interactions
- Iron supplements: increased iron absorption
- Warfarin: high-dose vitamin C may affect anticoagulation
- Aluminum-containing antacids: increased aluminum absorption
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.