Title: Method and composition to inhibit symptoms of allergy

Abstract: Fluorenone and anthraquinone compounds substituted by at least one tetrazolyl group in one ring, and further substituted in the other ring, optionally for the fluorenones, have antiallergic activity.

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Inventors: Hodson, Harold Francis (Hayes, EN)
Batchelor, John Frederick (Beckenham, EN)

Application Number: 634450
Filing Date: 1975-11-24
Publication_date: 1977-03-15
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Primary Class(es): 424/46 424/45, 514/381, 514/826
Other Classes:
US Patent Ref:

2713581

Jul, 1955

Pannone et al.

260/308.

Other Refs:
Primary Examiner: Waddell, Frederick E.
Assistant Examiner:
Attorney: Brown; Donald