Occupational Asthma Reference

Pepys J, Pickering CAC, Loudon HWG, Asthma due to inhaled chemical agents- piperazine dihydrochloride, Clin Allergy, 1972;2:189-196,

Keywords: oa, as , piperazine, chemist, ch

Known Authors

Tony Pickering, Wythenshawe Hospital, Manchester, UK Tony Pickering

Jack Pepys, Royal Brompton Hospital Jack Pepys

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An occupational type exposure to the dust from a mixture of piperazine dihydrochloride and lactose provoked late (3–4hr) asthmatic reactions in two sensitized subjects. These reactions were completely inhibited by disodium cromoglycate.

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