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Bronchospastic responses to aerosolized metabisulfite in asthmatic subjects: potential mechanisms and clinical implications.

The Journal of allergy and clinical immunology (1984-10-01)
H J Schwartz, E H Chester
RÉSUMÉ

Eight asthmatic patients with a history suggestive of sulfite sensitivity were studied, six of whom had a positive oral challenge to doses from 10 mg to 50 mg. All eight patients had aerosol metabisulfite challenge; six positive tests were observed at doses of 0.5 mg/ml and 5.0 mg/ml. Aerosolizing solutions of metabisulfite at 5.0 mg/ml generated significant amounts of free sulfur dioxide. Implications of these findings are discussed.

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Sigma-Aldrich
Potassium disulfite, ≥98%
Sigma-Aldrich
Potassium disulfite, puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
Sigma-Aldrich
Potassium disulfite, BioUltra, ≥97.0% (RT)