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Grastek

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Product Details

Description

Description

Buy Grastek Online from Licensed Canadian Pharmacies

Buy Grastek Online (Timothy Grass Sublingual Tablet 2800 BAU)

Grastek (Timothy grass pollen allergen extract) is a prescription sublingual immunotherapy tablet used to reduce grass-pollen allergy symptoms by training the immune system over time. It’s a brand name medicine, and you will need a valid prescription to buy it.

You take one tablet daily under your tongue, usually starting a few months before pollen season begins. Grastek is approved and designed to build your body’s tolerance to grass allergens with steady and daily use.

Grastek is meant for children and adults ages 5 to 65 and can make allergy seasons easier year after year. While it’s not a cure, it may reduce how often you need antihistamines or nasal sprays and help you breathe easier when pollen counts are high.

Your first dose must be given at your doctor’s office, and you’ll be prescribed an epinephrine auto-injector (like an EpiPen) just in case of a severe reaction, though such cases are rare. Over time, many patients notice fewer flare-ups, milder symptoms, and a better quality of life during allergy season.

Generic NameTimothy grass pollen allergen extract
Brand NameGrastek
FormsSublingual (under-tongue) tablet
Strengths Available2800 BAU (Bioequivalent Allergy Units) per tablet
Packaging30 tablets per package
Requires PrescriptionmPrescription only (Rx)
Ships to the U.S.Yes

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Uses and Benefits

Uses and Benefits

What Are the Uses of Grastek?

Grastek is used to treat grass pollen–induced allergic rhinitis, with or without conjunctivitis (symptoms affecting both the nose and eyes).

Benefits of Grastek

  • It helps reduce sneezing, runny or stuffy nose, and itchy eyes during the grass pollen season.
  • It decreases your reliance on symptom-relief allergy medications over time.
  • It can provide more consistent control on high-pollen days.
  • Due to its immune-modulating mechanism, results may improve from season to season.
  • It can lead to fewer and less severe allergy flare-ups in the long run.
  • This medication enables a better quality of life during grass allergy seasons.
  • It may provide a sustained benefit for a season after completing long-term therapy.
Dosage

Dosage

What Are the Recommended Grastek Dosages?

Grastek Dosage for Allergic Rhinitis (Grass Pollen Allergy)

  • Ages 5 to 65 years:
    • One 2800 BAU tablet once daily by the sublingual route (under the tongue)
    • The first dose must be administered in a health care setting with observation for at least 30 minutes for any severe allergic reactions
    • Treatment is usually started at least 12 weeks before the expected start of the grass pollen season and continued throughout the pollen season
    • In some cases, therapy may be continued daily for three consecutive years to achieve prolonged benefit even after stopping.
  • Under 5 years old: Safety and efficacy is not established.
  • Over 65 years old: Not studied or approved.
Usage Guide

Usage Guide

What Are the Usage Guidelines for Grastek?

To get the most out of Grastek while minimizing risks, here’s how you should take this medicine:

  • Take the tablet with dry hands immediately after removing it from its blister packaging.
  • Place under your tongue and allow it to dissolve for at least 1 minute before swallowing.
  • Do not eat or drink for 5 minutes after taking the tablet.
  • Use the tablet once daily, at about the same time each day. You will have to do it throughout the period of your treatment.
  • Always carry your epinephrine auto-injector (like an EpiPen or its equivalent) and know how to use it in case of a severe reaction.
  • If you experience persistent or escalating mouth, throat, or gum irritation, notify your health care provider.
  • Always follow your provider’s instructions on starting and stopping therapy.
  • Do not adjust the dose yourself.
How It Works

How It Works

How the Grastek Works?

Grastek gradually re-trains the immune response so your body reacts less vigorously to grass pollen. It makes it possible by exposing your immune system daily to a controlled and small amount of allergen. Over time, this dampening of allergic response reduces symptoms and the need for rescue allergy medications.

Side Effects

Side Effects

What Are the Side Effects of Grastek?

Common Grastek side effects may include:

  • Itching of the mouth, lips, tongue (oral pruritus)
  • Throat irritation or soreness
  • Ear itching (otalgia or pruritus)
  • Mouth or tongue swelling (mild)
  • Cough, dry throat, or throat tightness sensations

Serious side effects (rare):

  • Severe systemic allergic reaction (anaphylaxis), like difficulty in breathing, swelling of the face or throat, and faintness
  • Laryngopharyngeal swelling, which may compromise the airway
  • Eosinophilic esophagitis (inflammation of the esophagus) has been reported in some patients with persistent or worsening throat symptoms

Note: Contact your health care provider if you experience any serious symptoms or unusual changes.

Warnings

Warnings

What Are the Warnings for Grastek?

Before using Grastek, keep these cautions in mind:

  • The first dose must be given in a medical setting because of the risk of a serious allergic reaction, and you should be observed for at least 30 minutes afterward.
  • Do not use it if you have severe or uncontrolled asthma.
  • Sublingual allergen therapy is a contraindication if you have a history of severe systemic allergic reactions or severe local reactions with previous use.
  • Avoid use if you have eosinophilic esophagitis or a history of esophageal disorders.
  • Be cautious if you are taking beta-blockers or other medications that may blunt the response to epinephrine.
  • If you develop mouth sores, ulcers, or oral inflammation (for example, after a dental surgery), pause therapy until the condition is healed.
  • In pregnancy and breastfeeding, weigh the risks against the benefits because data on safety in these cases are limited.
Safety Guide

Safety Guide

What Are the Safety Guidelines for Grastek?

To keep your treatment safe and effective while using Gratek, stay mindful of these precautions:

  • Always carry your epinephrine auto-injector and know how or when to use it.
  • Start therapy well in advance of pollen season (at least 12 weeks prior) to build tolerance.
  • Stick to daily dosing without long interruptions during the season.
  • Monitor for new or worsening symptoms in the throat, mouth, or while swallowing. Discontinue taking this medicine if any of the symptoms become severe.
  • Inform all your health care providers (dentists, allergists, primary care) that you use Grastek.
  • Do not delay seeking emergency care if a severe reaction occurs.
  • Follow the prescribed duration; do not stop early without consulting your provider.

When to contact your doctor: Stop Grastek and seek medical help if you develop trouble breathing, chest tightness, severe throat swelling, or trouble swallowing. Report persistent mouth/throat pain or new swallowing difficulties.

Missed Dose

Missed Dose

If you miss a dose, take it as soon as you remember that same day. If it’s nearly time for your next dose, skip the missed one. Do not try to double up on your doses. Then resume your regular daily schedule.

Overdose

Overdose

An overdose of Grastek is unlikely if you use it as prescribed. If someone takes more than the prescribed dose and experiences symptoms like severe throat swelling or breathing difficulty, seek emergency medical attention right away. You may also call the poison control center at 1-800-222-1222 toll-free.

Storage Guide

Storage Guide

What Are the Storage Guidelines for Grastek?

To keep your Grastek tablets stable and safe, follow these instructions to store them properly:

  • Store at room temperature, away from excessive heat, moisture, and direct light.
  • Keep tablets in their original blister packs until you are ready to use them.
  • Protect from humidity (do not store in bathroom).
  • Do not freeze this medication.
  • Keep out of reach of children and pets.
  • Dispose of expired or unused tablets responsibly.
Interactions

Interactions

Before taking Grastek, tell your doctor about all prescription, over-the-counter, and herbal products you use. Some medications can affect how allergic reactions are managed if they occur.

Drug CategoryExamplesEffect or Precaution
Beta-blockersPropranolol, Atenolol, MetoprololMay reduce the effectiveness of epinephrine during anaphylaxis. Use only under close medical supervision.
MAO Inhibitors & Tricyclic AntidepressantsPhenelzine, Selegiline, Amitriptyline, ImipramineCan intensify epinephrine’s cardiovascular effects (rapid heartbeat, high blood pressure); tell your doctor before use.
Other Allergen ImmunotherapiesOralair (five grass pollen), Ragwitek (ragweed pollen), Odactra (house-dust mite)Should not be combined with Grastek unless specifically directed by an allergist.
Asthma MedicationsInhaled steroids (fluticasone), rescue inhalers (albuterol)Continue as prescribed, but do not start Grastek if asthma is severe or uncontrolled.
Common Allergy Symptom RelieversCetirizine (Zyrtec), Loratadine (Claritin), Fexofenadine (Allegra), Fluticasone nasal spray (Flonase)May be safely used alongside Grastek for breakthrough symptoms; follow your doctor’s advice.
Active Oral Inflammation / Dental ProceduresMouth ulcers, recent tooth extraction, and oral surgeryPause Grastek until the mouth is healed to avoid increased local irritation.

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Important Note: Do not start, stop, or combine allergy medications or immunotherapy treatments without consulting your allergist or pharmacist. Always keep your epinephrine auto-injector available and inform health care professionals that you’re using Grastek.

Alternatives

Alternatives

What Are the Alternatives for Grastek?

If Grastek is not ideal for you, your doctor might suggest these alternative medicines:

Grastek AlternativeFormAllergens It ContainsBest For
OralairSLIT tabletFive grass pollensMulti-grass sensitization
RagwitekSLIT tabletRagweed pollenRagweed allergy
OdactraSLIT tabletHouse dust mitePerennial dust mite allergy
Allergy Shots (SCIT)SubcutaneousCustomized allergen mixMulti-sensitized or severe cases
Symptom Control (OTC/Rx)PharmacologicAntihistamines, nasal steroidsBreakthrough symptoms

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Cost & Coupons

Cost & Coupons

Why Buy Grastek from Polar Bear Meds?

At Polar Bear Meds, we’re committed to making prescription medications more accessible and affordable for patients in the USA. Our Grastek prices are significantly lower than typical U.S. pharmacy retail rates without compromising on safety or quality.

Every order is sourced exclusively from licensed and trusted pharmacies. When you buy this Timothy grass pollen allergen extract tablet, it undergoes complete prescription verification to ensure compliance and authenticity. We offer discreet, trackable shipping to all U.S. states, along with refill support for ongoing treatment.

Grastek Cost & Coupons

Save more by using the Grastek coupon code “WELCOMEPB10” for 10% off on your first order. There are no hidden handling or processing fees, as we believe in complete transparency.

Looking to save even more? Join our referral program & earn a $20 credit every time you refer a friend or family member. After every 10 verified customer referrals, you'll receive a $100 credit in your account as a thank-you for spreading the word.

FAQ

FAQ

Guarantee

Guarantee

AtPolar Bear Meds, your safety is our priority. Every order is dispensed from a fully licensed Canadian pharmacy following strict standards for quality, security, and patient care. To conveniently buy Grastek from Canada at a substantial cost, call us at 1-888-779-2193 toll-free.

Dr. Jackson Miller

Medically Reviewed by Dr. Jackson Miller (M.D)

Dr. Jackson Miller is a board-certified medicine physician & hospitalist. He is a healthcare professional with a strong background in patient care. With years of experience and a patient-first approach, he believes the foundation of good health is a patient who feels informed and empowered. He contributes to medical content review, drawing on his background in clinical practice and patient education. He focuses on presenting health information in a clear, accurate, and accessible way to help readers make informed decisions. His work emphasizes clarity, evidence-based guidance, and understandable explanations of medical topics.

Find Dr. Jackson Miller on:LinkedIn

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