Sebastian S. Lighvani, MD NEW YORK ALLERGY AND ASTHMA, PLLC 261 East 78th Street 4th Floor New York, NY 10075 ee Persons scheduled for skin testing should not take antihistamines or medications containing them for at least 3 but preferably 5 days before being tested. Antihistamines are often found in cold or allergy medicines. You may continue to take decongestants, mucus thinners and most nasal sprays. Some of the available antihistamines are listed below. ACTIFED DRISTAN ALLEGRA FEXOFENADINE ALLEGRA-D HYDROXYZINE ALLERX LORATIDINE ATARAX NOLAMINE ATROHIST OPTIMINE ASTELIN PATANASE ASTEPRO PBZ AZATIDINE PERIACTIN BENADRYL PHENERGAN BROMPHED PROMETHAZINE BROMPHENIRAMINE RONDEC CARBINOXAMINE SEMPREX-D CETRIZINE TAVIST CHLORPHENIRAMINE TAVIST-D CHLORTRIMETON TELDRIN CLARINEX TRINALIN CLARINEX-D TRIPELENNAMINE CLEMASTINE TRIPROLIDINE COTYLENOL TYLENOL PM CYPROHEPATIDINE UNIDECON DESLORATIDINE VISTARIL DIMETANE XYZAL DIMETAPP ZYRTEC DIPHENHYDRAMINE ZYRTEC-D EFTA00587708