Grastek is used to treat allergic rhinitis. Grastek is the most popular allergen immunotherapies. There are currently no generic alternatives to Grastek.
GoodRx has partnered with Inside Rx and ALK to reduce the price for this prescription. Check our savings tips for co-pay cards, assistance programs, and other ways to reduce your costs. Grastek is covered by some Medicare and insurance plans.
Grastek Side Effects
What should I watch for?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
Your doctor or healthcare professional should prescribe auto-injectable epinephrine for you to keep at home for treating a severe allergic reaction if needed. Your healthcare professional will tell you how to use the auto-injectable epinephrine. Some medicines may make epinephrine not work as well or worsen side effects. Talk with your health care professional if you take any of these medicines:
- certain medicines for blood pressure, heart disease, irregular heart beat
- certain medicines for depression, anxiety, or psychotic disturbances
- ergot alkaloids like dihydroergotamine, ergonovine, ergotamine, methylergonovine
- MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
- thyroid hormone
Side Effects to watch for
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breathing problems
- chest pain or chest tightness
- facial flushing
- fast, irregular heartbeat
- severe cough
- trouble swallowing
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this drug?
Interactions have not been studied.