This medication may well interfere with sure lab exams (such as allergy skin tests), quite possibly producing Phony test outcomes. Be sure lab personnel and all your Health professionals know you employ this drug. Should you have concerns, talk to your health practitioner or pharmacist, or see our ZYRTEC® FAQs https://cetirizine78012.creacionblog.com/30136023/what-is-zyrtec-things-to-know-before-you-buy