Antihistamines

If you are interested in allergy skin prick testing, you will need to stop all antihistamines before your appointment unless the medication is required for another medical condition such as chronic hives, migraine headaches, chronic abdominal pain or a psychiatric condition.

Please call our clinic if an antihistamine is taken before your appointment or if an antihistamine is required for another medical condition. If you have questions or are unsure about a medication, please call our clinic or ask your pharmacist.

Please stop taking these medications for the designated number of days prior to your appointment:

Generic Brand Names Days
loratadine Claritin, Alavert, AllerClear, Wal-itin, Allergy Relief, QlearQuil, Triaminic Allerchews 7
desloratadine Clarinex 7
fexofenadine Allegra, Aller-Fex, Mucinex Allergy 7
levocetirizine Xyzal 7
cetirizine Zyrtec, Aller-Tec, Wal-Zyr, All Day Allergy 7
hydroxyzine Vistaril, Atarax 7
over-the-counter medications with antihistamines Tylenol PM, Advil PM, ZzzQuil, etc. 7
diphenhydramine Complete Allergy Relief, Benadryl, Aler-Dryl 7
azelastine Astelin, Astepro 7
olopatadine  Patanase 7
azelastine/fluticasone Dymista 7
ranitidine Acid Reducer, Zantac, Wal-Zan 7
famotidine Acid Reducer, Heartburn Relief, Pepcid 7
Antihistamine eye drops Ketotifen, Zaditor, Alaway, Patanol, Pataday, Lastacraft, Bepreve, Optivar, Elestat, Emadine 7

 

  • If you are taking doxepin, amitriptyline, or other tricyclic agents call our clinic before stopping

Continue taking:

  • All medications that are not antihistamines, including nasal steroid sprays, montelukast (Singulair), and asthma inhalers or nebulizers.