Which of the following is not a non-sedating antiallergic drug?

Ans. is 'd' i.e., Triprolidine o Second generation antihistaminics have no CNS depressant action (sedation, diminished aleness) o Cetrizine, astemizole and terfenadine are second generation antihistaminics. o Triprolidine is first generation antihistaminic with mild sedative propey.