Pre-Visit Instructions for Allergy Testing
In preparation for allergy testing, please carefully read the follow instructions regarding discontinuing the use of antihistamine-containing medications:
- Discontinue antihistamine-containing medications for 3 days (72 hours) prior to the time of your appointment.
- Please note that this includes both prescription and over-the-counter antihistamines. Most cold and allergy products contain antihistamines
Other products containing antihistamines:
- Medications for motion sickness (including Dramamine and Antivert.
- Over-the-count sleep medications such as Tylenol PM and Sominex.
- Medications for nausea such as Phenergan.
- Medications for reducing stomach acid, including Tagament, Axid, and Zantac (Prilosec and Prevacid do NOT contain antihistamine).
- Muscle relaxants such as Flexeril.
Tricyclic antidepressants, including imipramine, desipramine, Amitriptyline and nortriptyline, also contain antihistamine; however, we strongly recommend that you speak with your physician before discontinuing these medications.
Prescription allergy nasal steroid sprays
Most prescription allergy nasal steroid sprays and asthma medications DO NOT contain antihistamine. (Astelin, Astepro and Patanase are the only nasal sprays that currently contain antihistamine. These need to be discontinued six days prior to your appointment.)
Are you unsure?
If you are unsure whether it is safe to discontinue a medication, please contact your doctor before you stop taking it. If you are unsure about whether one of your medications contains antihistamine, or if you are unable to discontinue your antihistamines, please contact our office.
Please continue using your asthma inhalers. You do not need to discontinue use of these.
Visit our allergy testing page to learn more about the different types of tests we offer.