你可以google "sulfa allergy and sulfonylurea"

1. Sulfonamide cross-reactivity: is there evidence to support broad cross-allergenicity?

CONCLUSION:
A review of the professional literature and manufacturer-provided data did not find convincing evidence of broad cross-reactivity between antibacterial and nonantibacterial sulfonamide agents.

2. Glyburide (一种常用的磺脲类糖尿病药物）FDA sheet

其中禁忌症并没有提到sulfa过敏史。实际上通篇都没有提到sulfa的事情。