Effects of ascorbic acid on pulmonary functions in mild asthma

J Asthma. 1983;20(1):39-42. doi: 10.3109/02770908309070911.


Twenty subjects with mild asthma took a short course of moderately high doses of Vitamin C (500 mg four times daily for 3 days and 1 g prior to spirometric evaluation). There were no differences in pulmonary functions just prior to and after therapy. There were no adverse reactions noted. If, as reported, Vitamin C has a beneficial effect in asthma, it does not appear to be due to a bronchodilatory effect.

MeSH terms

  • Adult
  • Ascorbic Acid / administration & dosage
  • Ascorbic Acid / therapeutic use*
  • Asthma / drug therapy*
  • Bronchi / drug effects
  • Female
  • Humans
  • Male
  • Middle Aged
  • Respiratory Function Tests*


  • Ascorbic Acid