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Grastek Coupon & Discounts

Save on Grastek at your pharmacy with the free discount below.

Grastek is an allergy medicine formulated to help control allergies caused by Timothy grass pollen, and is sold in thirty tablet packs, with the prices for one package ranging between $258 and $280. At HelpRx, we offer a Grastek discount coupon that can lower costs by as much as 68% every time you fill your pre ... Read more

Grastek Discount

Savings with HelpRx discount up to:

68% Off

on Grastek

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*The discount percent is an estimate based off recent cardholder data. Valid as of May 23, 2018

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Grastek Information:

What is Grastek?

Grastek is a timothy grass pollen allergen extract used to treat allergies and symptoms caused by Timothy grass pollen. It is classified as a type of immunotherapy, and it is theorized that this medication works by slowing building up a patient’s tolerance to grass pollen. It will not relieve allergy symptoms that have already appeared.

How do I take Grastek?

Grastek is a sublingual medication in pill form, usually taken once a day, with treatment beginning at least twelve weeks before the onset of a grass pollen season. You will take your first dose of Grastek in the office of your healthcare provider where he or she can monitor for adverse reactions. Place the medication under your tongue and allow it to dissolve. Do not consume food or drink for at least five minutes after taking this medication as it may interfere with the amount of medication that is absorbed.

Before taking Grastek, tell your doctor if:

  • You are allergic to Timothy grass pollen, or any of the ingredients in Grastek
  • You are pregnant, planning a pregnancy, or are nursing a child
  • You are taking any prescription or non-prescription medications, vitamins, or supplements
  • You have asthma or other breathing conditions or problems
  • You have heart disease, hypertension, tachycardia, or arrhythmia;
  • You have, or have had, liver disease
  • You have, or have had, eosinophilic esophagitis
  • You have a mouth infection or sores or wounds in your mouth
  • You are taking allergy medicines or are receiving allergy shots
  • You have ever had an allergic reaction
  • You are taking lisinopril, hydrochlorothiazide, bisoprolol, enalapril, pindolol, moexipril, alfuzosin, verapamil, diltiazem, trandolapril, belladonna, ergotamine, phenobarbital, sotalol, phentolamine, or quinapril
  • You are taking amlodipine, benazepril, dutasteride, fosinopril, felodipine, doxazosin, captopril, or benazepril

What are the possible side effects of taking Grastek?

Some individuals have reported side effects after taking Grastek. Mild symptoms include a numb, tingling, or itching mouth or tongue, itching in the ear, or throat irritation. If any of these conditions persist or worsen, contact your doctor.

Severe side effects requiring immediate medical attention include signs of an allergic reaction (hives, rash, itching, swelling of the face, mouth, lips, throat, or tongue; difficulty breathing or swallowing), chest pain, dizziness, heartburn, tachycardia, arrhythmia, fainting, diarrhea, vomiting, stomach cramps, severe or persistent coughing or mouth irritation or pain, speech difficulties, and wheezing.

What if I forget to take a dose of Grastek?

If you forget to take your Grastek medication, do so as soon as you remember and are able. However, it is almost time for the next scheduled dose, skip the one missed and resume the normal dosing routine. Do not increase the number of doses or alter the dosing regimen to make up for one that was missed. If you miss more than one dose, contact your healthcare provider for instructions.

How do I store Grastek?

Store Grastek in its original container, out of the reach of children and away from the extremes of temperature and humidity. Dispose of any unused or expired doses according to the instructions of a pharmacist.

What happens if I overdose on Grastek?

If an overdose of Grastek is suspected, contact the Poison Control Center at 1-800-222-1222. If the individual has stopped breathing or lost consciousness, contact Emergency Services at 911. Signs of an overdose include swelling of the face, mouth, lips, throat, or tongue, difficulty breathing or swallowing, hives, rash, or intense itching.


Grastek may cause a severe allergic reaction. Call your doctor if you become pregnant while taking this medication. Grastek may cause asthma to worsen. This medication can cause dizziness or fainting; do not drive, operate heavy machinery or equipment, use power tools, or handle firearms until its effects are known.

Brand Names

Grastek is the brand name for timothy grass pollen extract and is not available under any other brand. The Grastek discount coupon offered at HelpRx can lower the cost by as much 68% at local pharmacies. In addition, HelpRx provides access to a card that can be used for lowering the costs for a host of allergy and other medications. To download, print, or email this reusable discount card, click the “Free Card” button at the top of any page on the HelpRx site.

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Grastek Information:

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About Our Savings: is a discount pharmacy service, partnered with a leading pharmacy benefit manager. We negotiate lower prices on prescription medications, that we pass on to our members for free. There is no cost to use our cards and coupon, and anyone can take advantage of our discounts, regardless of healthcare coverage.

Our savings assurance of “up to 75% off” comes from historical data from actual claims. This data includes savings for both brand name and generic medications.