Timothy grass pollen allergen extract (Sublingual)
Medically reviewed by Drugs.com. Last updated on May 22, 2022.
Timothy Grass Pollen Allergen Extract can cause life-threatening allergic reactions such as anaphylaxis and severe laryngopharyngeal restriction. Do not administer Timothy Grass Pollen Allergen Extract to patients with severe, unstable or uncontrolled asthma. Observe patients in the office for at least 30 minutes following the initial dose. Prescribe auto-injectable epinephrine, instruct and train patients on its appropriate use, and instruct patients to seek immediate medical care upon its use. Timothy Grass Pollen Allergen Extract may not be suitable for patients with certain underlying medical conditions that may reduce their ability to survive a serious allergic reaction, or in patients who may be unresponsive to epinephrine or inhaled bronchodilators (eg, those taking beta-blockers) .
Commonly used brand name(s)
In the U.S.
- Grastek
Available Dosage Forms:
- Tablet
Therapeutic Class: Immunological Agent
Uses for timothy grass pollen allergen extract
Grastek® is an allergen extract which is used as an immunotherapy to treat symptoms of grass pollen allergic rhinitis with or without conjunctivitis. This is confirmed by a positive skin test that is caused by timothy grass pollen allergen extract.
Timothy grass pollen allergen extract is available only with your doctor's prescription.
Before using timothy grass pollen allergen extract
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For timothy grass pollen allergen extract, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to timothy grass pollen allergen extract or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of Grastek® in children 5 to 17 years of age. However, safety and efficacy have not been established in children younger than 5 years of age.
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of Grastek® in the elderly. However, safety and efficacy have not been established in elderly patients older than 65 years of age.
Breastfeeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
