A patient is taking cetirizine. What is this medication most commonly used for, and does it require any modification before a dental extraction?

Cetirizine is a second-generation H1 antihistamine commonly used for seasonal allergic rhinitis (and other allergic conditions), with a more favorable (less sedating) side effect profile than first-generation antihistamines. It doesn't significantly affect platelet function, coagulation, or wound healing, so no specific dental treatment modification is needed before an extraction.