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| Routes of administration |
Oral |
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| Formula | C11H9N3O2 |
| Molar mass | 215.212 g·mol−1 |
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Pirquinozol (SQ-13,847) is a drug which was investigated as an antiallergen and antiasthmatic agent in the early 1980s but was never marketed. Notably, pirquinozol is not an antihistamine, though it does block the release of histamine evoked by allergens, and it does not bind to β-adrenergic receptors either.