Zyrtec-d with Chlordiazepoxide mixing medications

Patient: Is it safe to mix zyrtec-d with chlordiazepoxide

Doctor: Mixing zyrtec-d (cetrizine/pseudoephidrine) with chlordiazepoxide may result in impairment of mental alertness and perfo rmance. The mixture should be avoided if you are doing any work that requires you to be alert. Do not drive when on medication.