Grastek is a prescription medication used to treat symptoms of allergies and hay fever. The way this medication works is not completely understood. It is thought to help your body develop an immunity to pollen that causes sneezing, itching, and watery eyes. The average retail price of Grastek is around $463.11 for 1, 30 tablets sublingual box. SingleCare can help you lower this total to $335.26 with a Grastek coupon. Our coupon can be redeemed at participating pharmacies.
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SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.
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Prices updated: 12/05/2025
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Grastek is a prescription medication used to treat symptoms of allergies and hay fever. The way this medication works is not completely understood. It is thought to help your body develop an immunity to pollen that causes sneezing, itching, and watery eyes. The average retail price of Grastek is around $463.11 for 1, 30 tablets sublingual box. SingleCare can help you lower this total to $335.26 with a Grastek coupon. Our coupon can be redeemed at participating pharmacies.
Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.
| Pharmacy | Grastek Retail Price | Grastek SingleCare Price |
|---|---|---|
| Walgreens | $432.00 | $360.90 |
| Kroger Pharmacy | $429.00 | $338.40 |
These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.
Grastek is a prescription medication used to treat symptoms of allergies and hay fever. The way this medication works is not completely understood. It is thought to help your body develop an immunity to pollen that causes sneezing, itching, and watery eyes. The average retail price of Grastek is around $463.11 for 1, 30 tablets sublingual box. SingleCare can help you lower this total to $335.26 with a Grastek coupon. Our coupon can be redeemed at participating pharmacies.
Without insurance coverage, the average cost of Grastek is around $463.11 per 1, 30 tablets sublingual box. SingleCare can help you to save on this total with our Grastek prescription discount cards. Pay a discount price of $335.26 for your Grastek prescription refill participating pharmacies such as CVS, Target, Longs Drugs, Walmart, Kroger, and Fry's.
The cost of Grastek with insurance may vary based on the type of insurance coverage plan that you are enrolled in. Contact your insurance provider directly to find out exactly how much Grastek costs under your current insurance plan.
SingleCare can help you to easily save on your Grastek purchases. Pay a reduced cash price of $335.26 for your Grastek purchase when you use SingleCare's Grastek prescription savings card.
Medicare prescription plans currently do not provide coverage for Grastek. SingleCare can help you to save on this medication even without Medicare coverage. Just use our SingleCare Grastek savings card at participating pharmacies and our lowest price of $335.26 for your Grastek prescription medication.
Grastek is a brand-name prescription drug for which there is not a generic alternative.
Grastek is an FDA-approved prescription medication used to treat certain types of allergies, caused by grass pollens, that may occur seasonally or even all year round. It is made from an extract of certain plants and grass pollen that cause allergies. Your doctor will usually perform lab tests to first learn what you are allergic to.
Grastek works by making your body less sensitive to the pollen that causes your allergies. It usually does not work right away to relieve allergy symptoms, so it is recommended that this medication is started at least 12 weeks before symptoms are expected to occur.
Use this medication consistently in order to ensure you experience maximum benefit. If you're using this medication over an extended period of time and do not experience your symptoms improving, then you should contact your doctor right away.
Before taking Grastek, tell your doctor about all of the medical conditions you have, and any medications you take, including prescription and OTC drugs, vitamins, and supplements. Grastek has a black box warning, which is the strongest warning required by the U.S. Food and Drug Administration (FDA). The warning states:
Grastek can cause life-threatening allergic reactions (see more on this below). Grastek should not be used by patients with certain medical conditions that may lower their chance of surviving a serious reaction.
Patients with asthma that is severe, unstable, or not controlled, should not take Grastek. Patients who may be unresponsive to epinephrine or emergency inhalers (such as patients who take beta blockers) should not take Grastek.
The first dose of Grastek is given in the doctor’s office, and then the patient is observed for at least 30 minutes.
Patients who take Grastek should also have a prescription for auto-injectable epinephrine (EpiPen), and should be trained on how to use it.
The most common side effects of Grastek are throat irritation, swelling under the tongue, and itching of the mouth, lips, or tongue.
Grastek can cause severe allergic reactions, which can be life-threatening. Seek emergency medical attention if you have any of the following symptoms: tightness or swelling of the throat, dizziness or fainting, stomach pain, vomiting or diarrhea, a heartbeat that is fast or weak, flushing or itching, or trouble breathing/wheezing.
This is not a complete list of side effects. Consult your doctor or healthcare professional for additional information and medical advice regarding other possible side effects or drug interactions.
After receiving her doctorate from the University of Pittsburgh School of Pharmacy, Karen Berger, Pharm.D., has worked in both chain and independent community pharmacies. She currently works at an independent pharmacy in New Jersey. Dr. Berger enjoys helping patients understand medical conditions and medications—both in person as a pharmacist, and online as a medical writer and reviewer.
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Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price. This is a medical discount plan. This is NOT insurance. This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account. The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at www.singlecare.com, or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.
Blog articles are not medical advice. They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911.
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© 2025 SingleCare Administrators. All rights reserved