Ascorbic acid (vitamin C) occurs naturally in foods such as citrus fruit, tomatoes, potatoes, and leafy vegetables. Vitamin C is important for bones and connective tissues, muscles, and blood vessels. Vitamin C also helps the body absorb iron, which is needed for red blood cell production.
Ascorbic acid is used to treat and prevent vitamin C deficiency.
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joint pain, weakness or tired feeling, weight loss, stomach pain;
chills, fever, increased urge to urinate, painful or difficult urination; or
severe pain in your side or lower back, blood in your urine.
Common side effects may include:
heartburn, upset stomach; or
nausea, diarrhea, stomach cramps.
Usual Adult Dose for Dietary Supplement Oral, IM, IV, subcutaneously: 50 to 200 mg/day. Usual Adult Dose for Urinary Acidification Oral, IM, IV, subcutaneously: 4 to 12 g/day in 3 to 4 divided doses. Usual Adult Dose for Scurvy Oral, IM, IV, subcutaneously: 100 to 250 mg once or twice daily for a minimum of two weeks. Usual Pediatric Dose for Dietary Supplement Oral, IM, IV, subcutaneously: 35 to 100 mg/day. Usual Pediatric Dose for Urinary Acidification Oral, IM, IV, subcutaneously: 500 mg every 6 to 8 hours. Usual Pediatric Dose for Scurvy Oral, IM, IV, subcutaneously: 100 to 300 mg/day in divided doses for a minimum of two weeks.