What is Oralair? Uses, warnings & side effects

Updated May 14, 2025  •  Published Dec 30, 2020

Oralair overview

BRAND NAMES:

  • Oralair 300IR

Generic Names:

  • Oralair

Uses:

  • Treats grass pollen allergic rhinitis.

Therapeutic Classes:

  • Immunological Agent

Forms:

  • Tablet

How it’s taken:

  • Under the tongue

What is Oralair used for?

Oralair is an immunological agent used to treat symptoms of grass pollen allergic rhinitis with or without conjunctivitis. It treats sneezing, runny or itchy nose, nasal congestion or itchy and watery eye. Oralair is indicated for use by patients 10 years and older. This medication is available as a sublingual tablet.

What form(s) does Oralair come in?

  • Tablet

What are common Oralair dosages?

  • Disp Pack 30 Tablets Sublingual

Oralair images - What does Oralair look like?

  • Oralair
    30 tablets sublingual disp pack

How to take Oralair

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Start taking Oralair® 4 months before grass pollen season begins and continue taking it throughout the pollen season.

  • Wash your hands before and after you take the tablet.

  • Remove the tablet from the blister pack and place it under your tongue. Let it dissolve for about 1 minute before you swallow it. Do not eat or drink anything for 5 minutes after you swallow the tablet.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Missed dose: Skip the missed dose and take your next dose at the regular time. Do not take extra medicine to make up for a missed dose. If you miss your dose for more than one day, call your doctor before you start taking the medicine again.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Remove the tablet from the blister pack and place it under your tongue. Let it dissolve for about 1 minute before you swallow it. Do not eat or drink anything for 5 minutes after you swallow the tablet.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Start taking Oralair® 4 months before grass pollen season begins and continue taking it throughout the pollen season.

  • Wash your hands before and after you take the tablet.

  • Missed dose: Skip the missed dose and take your next dose at the regular time. Do not take extra medicine to make up for a missed dose. If you miss your dose for more than one day, call your doctor before you start taking the medicine again.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

What to do if you miss a dose of Oralair

Oralair contraindications - Who shouldn't take Oralair?

  • This medicine is not right for everyone. Do not use it if you have a history of severe allergic reactions or eosinophilic esophagitis.

Oralair warnings

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have asthma or lung problems (such as COPD), heart rhythm problems, high blood pressure, angina, or you had a recent heart attack. Tell your doctor if you have mouth ulcers, oral thrush, or recently had oral surgery or a tooth removed.

  • Call your doctor right away if you have trouble breathing or if your asthma becomes difficult to control.

  • Ask your doctor if you should keep an emergency injection with you in case of a severe allergic reaction. If you have a severe allergic reaction, seek medical care right away and stop using this medicine.

  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

Oralair interactions & what to avoid when taking Oralair

  • Tell your doctor if you are pregnant or breastfeeding, or if you have asthma or lung problems (such as COPD), heart rhythm problems, high blood pressure, angina, or you had a recent heart attack. Tell your doctor if you have mouth ulcers, oral thrush, or recently had oral surgery or a tooth removed.

  • Call your doctor right away if you have trouble breathing or if your asthma becomes difficult to control.

  • Ask your doctor if you should keep an emergency injection with you in case of a severe allergic reaction. If you have a severe allergic reaction, seek medical care right away and stop using this medicine.

  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Oralair side effects - How does Oralair make you feel?

Serious Side Effects

  • Sores or white patches on your lips, mouth, or throat

  • Severe chest pain, trouble swallowing

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Lightheadedness, dizziness, or fainting

Less Serious Side Effects

  • Sore throat

  • Itchy ears, mouth, or tongue