Allergy Drops (Sublingual Immunotherapy):
(Note: this information will also be emailed to you)
Sublingual Immunotherapy (Allergy Drops or SLIT ) is a home-based daily therapy applied under the tongue to treat allergic rhinitis and/or allergic asthma. Your allergist has discussed this therapeutic option with you at length to help you understand the pros and cons of such treatment.
Sublingual Immunotherapy is an “off label” use of an FDA approved product. This allergy extract has been approved by the FDA for allergy shots. However, it is now being prescribed in another manner (drops under the tongue) that has not yet been specifically approved by the FDA. Using this allergy extract as allergy drops is generally not covered by insurance.
Sublingual Immunotherapy is often associated with minor local side effects such as itching and/or swelling of the lips/tongue/mouth, nausea or stomachache. These symptoms are usually mild and often resolve without treatment. If medication is needed, a quick onset oral antihistamine such as cetirizine (Zyrtec) or diphenhydramine (Benadryl) is generally sufficient to treat these symptoms.
There is a very small risk of a generalized systemic allergic reaction that theoretically could be life-threatening. Symptoms of such a reaction could include:
- Hives or itching of the entire body
- Flushing (redness) of the skin, with or without hives
- Swelling of the throat
- Cough, wheeze, chest tightness or chest discomfort
- Tearing, sneezing or nasal congestion
- Faintness, or generalized feeling of not being well
- Metallic taste
- Cramping of the uterus, stomach or intestines
For this reason, some physicians advise keeping an epinephrine auto-injector (such as EpiPen or Auvi-Q) available for emergency use.
Significant adverse reactions to Sublingual Immunotherapy are more likely to occur if the treatment is interrupted and not administered daily. It is important to administer drops daily and keep scheduled follow-up appointments (usually every 3 months to monitor progress).
If you become pregnant while using Sublingual Immunotherapy (Allergy Drops), notify your Allergist prior to administering your next dose to discuss the options.
Please notify the nursing staff if you start any new prescription medication. Certain medications such as “Beta blocker” medications (tablet or eye drops), often prescribed for high blood pressure, various heart problems, migraine headaches or glaucoma, may pose a safety risk while receiving Allergy Drops (or shots).
Signing the Allergy Drops/Sublingual Immunotherapy Authorization (provided on a later page) confirms your understanding of the above information.