Phoenix Environmental Allergy Testing

San Tan Allergy & Asthma

little boy plays with rabbit outdoors

Testing for environmental allergies and foods can be performed relatively quickly and painlessly using a method called “scratch” testing. Essentially skin testing (allergy testing) involves applying a small amount of an “extract” containing different allergens with plastic applicator. The skin is not broken during the testing procedure. Skin test reactions are measured after 15 – 20 minutes giving you a good idea about whether or not you are allergic to variety of different allergens. Positive reactions may itch, much like a mosquito bite, but usually any discomfort resolves in less than an hour.

The following medications may interfere with skin testing and should be discontinued 7 days before testing (if possible) is performed in order for testing to be accurate:

  • Actagen
  • Deconamine
  • Promethazine
  • Actifed
  • Dimenhydrinate
  • Rondec
  • Acrivastine
  • Dimetane
  • Rynatan
  • Allegra (any)
  • Dimetapp
  • Ryna-12
  • Allerclear
  • Dipenydramine
  • Rynatuss
  • Allerfrin
  • Doxepin
  • Semprex-D
  • Alertec/Aller-Tec
  • Dramamine
  • Tanafed
  • Aller-Fex
  • Drixoral
  • Tavist
  • Antivert
  • Duravent-DA
  • Triaminic
  • Atarax
  • Fexofenadine
  • Triaminicol
  • Benadryl
  • Histavent-LA
  • Trinalin
  • Bromphed
  • Histex
  • Triprolidine
  • Brompheniramine
  • Hydroxyzine
  • Tussi-12
  • Cetirizine
  • Meclizine
  • Tussionex
  • Chlorpheniramine
  • Ominihist-LA
  • Vistaril
  • Chlor-trimeton
  • Ornade
  • Wal-Fex
  • Clarinex (any)
  • Pedicare
  • Wal-Tin
  • Claritin (any)
  • Periactin
  • Wal-Zyr
  • Clemastine
  • Phenergan
  • Xyzal
  • Cyproheptadine
  • Poly-histine
  • Zyrtec

Nasal Sprays

  • Astelin
  • Astepro
  • Azelastine
  • Patanase

Eye Drops

  • Pataday
  • Patanol
  • Olopatadine
  • Optivar
  • Zaditor


  • Benzodiazepines
  • Lunesta
  • Trazodone
  • Xanax

*Contact your prescribing physician prior to discontinuing the medications listed under ‘Other’.

There are additional medications that may interfere with skin testing, however they should not be discontinued without further discussion with your primary care doctor or one of the providers at San Tan Allergy & Asthma. If you are interested in allergy testing, please contact our office and schedule an appointment to meet with one of our Phoenix allergy experts.

Patient Testimonials

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Staff is professional and always very friendly!

After allergy testing, Dr. Shimamoto explained the process and options of allergy injections and answered all my questions. I follow up with Heidi, who is also great! As of now, I’m still doing weekly injections and it’s been easy to get desired appointment day and times. I am happy that I chose San Tan Allergy!”

judith mendez

“Thank you for being Professional and Caring.”

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Lisa Blaylock ★★★★★

Watch out for telemedicine appointments. Make sure you have pre-screened for them. Worked with Jackie over the phone. She is fantastic–super patient and professional. Had exam and skin tests ordered by Dr. Shimamoto. He’s happy and efficient. Great practice, just need to be patient with all the delays and possible miscommunications due to all the pandemic-imposed restrictions.”

E. M. ★★★★★

Everything was so nice. The reception in the front desk of the best. I didn’t have a appointment. And they look and got me one next day. Two girl in the other office were also so nice. My son goes there. I’m from El paso and I was very impressed. Thanks again.”

Rita Romo ★★★★★

edwin jose

We love Dr. Shimamoto and the staff at San Tan Allergy & Asthma.

Fran Lowder ★★★★★

jacqui rodriguez

Dr. Shimamoto is fabulous. He has seen my daughter since she was a new born and has assured her immunolocial concerns id not turn into issues.

Kat Myhre ★★★★★

Visit us at any of
our locations

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Gilbert Location

San Tan Map

4915 E. Baseline Road, Suite 112
Gilbert, AZ 85234-2966

480-626-6600 480-626-6604

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Monday-Thursday: 8:00 am – 5:00 pm
Friday: 8:00 am – 3:00 pm

Payson Location

Payton Map

708 E. HWY 260 Building B,
Payson, AZ 85541

480-626-6600 480-626-6604

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Allergy Injection Hours

8:00am – 4:20pm

8:00am – 4:20pm

8:00am – 4:20pm

 8:00am – 4:20pm

8:00am – 2:20pm

Closed: Saturday & Sunday

Medical Records Department

Billing Department

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