Antihistamines – 1st generation – Do not take these medications 5 days or longer prior to your appointment

• Bromphenarime (Brand name: Dimetapp)

• Carbinoxamine Maleate (Brand name: Palgic)

• Chlorpheniramine (6 days) (Brand name: AHIST, Aller-Chlor, C.P.M., Chlo-Amine, Chlor-Allergy, Chlor-Mal, ChlorTrimeton, Chlorphen, Effidac-24, Histex)

• Clemastine (10 days) (Brand name: Contact 12hr allergy)

• Cyproheptadine (10 days) (Brand name: Periactin)

• Diphenhydramine (Brand name: Actifed Sinus Day, Aler-tab, allergy, AllergySinus, Allermax, Aler-Dryl, Altaryn, Benadryl, Calm-Aid, Children’s allergy, Compoz nighttime, diphedryl, Diphen-Allergy, Diphenhist, Dormin Sleep Aide, Ibuprofen PM, pediacare children’s allergy, Q-dryl, simply allergy, simply sleep, sominex, Triaminic, Tylenol PM, unisom, valu-Dryl)

• Dimenhydrinate (Brand name: Dramamine)

• Hydroxyzine (8 days) (Brand name: Atarax, Vistaril, Rezine)

• Meclizine (Brand name: Antivert, Bonine)

• Promethazine (Brand name: Chlorpromazine, Phenergan, promethazine, thorazine)

Antihistamines – 2nd generation - Do not take these medications 5 days or longer prior to your appointment

• Cetirizine (Brand name: Zyrtec)

• Desloratadine (Brand name: Clarinex)

• Fexofenadine (Brand name: Allegra)

• Loratadine (Brand name: Claritin, Alavert)

• Levocetirizine dihydrochloride (Brand name: Xyzal)

Antihistamine Nose Spray - Do not take these medications 5 days or longer prior to your appointment

• Azelastine (Brand name: Astelin, Astepro, patanase, Dymista)

Antihistamine Eye Drops - Do not take these medications 5 days or longer prior to your appointment

• Azelastine (Brand name: Optivar)

• Olopatadine (Brand name: Patanase, Pataday, patanol ophthalmic eye drops)