Grass Pollen Allergen Extract
Oralair 100 is a sublingual immunotherapy tablet used to treat allergic rhinitis (hay fever) caused by grass pollen allergies in adults and children. It contains allergen extracts that help desensitize the immune system to specific allergens through daily under-the-tongue administration, with treatment typically continued over multiple seasons.
A prescription sublingual immunotherapy tablet for treating grass pollen allergies by gradually building immune tolerance.
Key facts at a glance
- RxNorm
- 1550701
- Generic
- Oralair 100
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of allergic rhinitis (hay fever) caused by grass pollen, including symptoms such as sneezing, runny nose, nasal itching, and eye irritation. Indicated for use in adults and children typically 5 years and older.
Contains standardized allergen extracts that are administered daily under the tongue. The medication works by delivering allergens directly to oral immune tissue, gradually desensitizing the immune system and building tolerance to grass pollen allergens over time with continued use.
First dose should be administered under medical supervision due to risk of severe allergic reactions. May cause local mouth/throat reactions. Not indicated for acute symptom relief; intended for ongoing immunotherapy treatment. Contraindicated in patients with severe asthma or certain immune conditions. Should be stored properly and used consistently as prescribed.
Official drug label
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy