Frequently Asked Questions
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Stop these oral antihistamines for 5 days before your allergy skin testing appointment:
Medications to Hold for Testing
Prescription Antihistamines
- Atarax, Vistaril (hydroxyzine)
- Allegra (fexofenadine)
- Clarinex Periactin (cyproheptadine)
- Rondec
- Pediatex
- Pedi-Ox
- Rynnatan
- Q-DAL
- Tussionate
- Tussi-12
- Tannihist
- Xyzal
- Anything that contains levocabastine
- *Doxepin/Adapin/Sinequan will need to be held longer than 5 days, but DO NOT STOP it until you have discussed these medications with your allergist
Over-the-Counter Antihistamines
- Claritin, Alavert, Triaminic, Allerchews, Store Brand Non-Sedating Antihistamine (loratidine)
- Zyrtec (ceterizine)
- Benadryl (diphenhydramine)
- Tavist (clemastine)
- Chlorpheniramine (Like Chlor-Trimeton, Actifed, Allerest)
- NyQuil, Robitussin Night Cold, Tylenol Flu Night Time (doxylamine)
- Tylenol or Advil PM (contain diphenhydramine)
- Pepcid/Zantac (famotidine)
- Dramamine (dimenhydrinate)
- Anything that contains loratadine
- Anything that contains famotidine
- Anything that contains diphenydramine
- Anything that contains brompheniramine
- Anything that contains chlorpheniramine
- Anything that contains carbinoxamine
- Anything that contains doxylamine
- Anything that contains clemastine
- Anything that contains tripolidine
- Anything that contains tripelennamine
- Any "Allergy" or "Cold" Preparation (like Tylenol Cold & Sinus or Advil Cold & Sinus)
This list is not comprehensive of all medications. For any questions please contact the office prior to your visit.
Other Types of Medications to Hold 5 Days Before Allergy Testing
Anti-Nausea Medications
- Dramamine (dimehydrinate)
- Doxylamine
- Antivert, Bonine (meclizine)
- Phenergan (promethazine)
Over-the-Counter Sleep Aids
- Any "PM'1 Product (Like Tylenol PM or Excedrin PM or Alka Seltzer PM or Doan's PM)
- Simply Sleep Nighttime Sleep Aid
- Sominex
- Anything that contains diphenhydramine Nasal and Eye Drops to Hold 48 Hours Before Allergy Testing
Prescription Nasal Sprays
- Astelin/azelastine
- Patanase/olopatadine
All Over-the-Counter Eye Drops
- Visine A Eye Drops
- Op-Con A
- Naph-Con A
- Alomide Eye Drops
Prescription Eye Drops
- Patanol Eye Drops
- Zaditor Eye Drops
- Optivar Eye Drops
- Elestat Eye Drops
- Olopatadine/Azelastine Eye Drops
Medicines That You MAY CONTINUE & Should Not
Interfere With Testing
- Saline Nose Spray
- Steroid Nose Sprays
- Afrin Nose Spray
- Singulair
- Asthma Inhalers
- Asthma Nebulizer Treatments
- Nasalcrom
- Crolom
- Zycam
- Mucinex (guaifenesin)
- Cough or Sinus Preparations that only contain
- dextromethorphan and/or guaifenesin and/or
- psudoephedrine
- Plain Sudafed (pseudoephedrine)
- “Non-Drowsy” Cold Preparations EXCEPT NO
- LORATIDINE
If you are not sure if the medicine you are taking is an antihistamine, please call our office.




