Frequently Asked Questions

RAGWITEK is a prescription immunotherapy medicine used to treat short ragweed pollen allergies that cause sneezing, runny or itchy nose, stuffy or congested nose or itchy and watery eyes. It can be prescribed for people ages 18 to 65 years old who are allergic to ragweed pollen.

RAGWITEK is taken for about 12 weeks before the ragweed pollen season and throughout ragweed pollen season.

RAGWITEK does NOT provide immediate relief for ragweed allergy symptoms. For more information about RAGWITEK, click here.

Only an allergy specialist can decide if RAGWITEK is right for you. Your allergy specialist may do skin and/or blood tests to help determine which allergen causes your symptoms. If the test indicates that you are allergic to short ragweed pollen, your allergy specialist will then decide if RAGWITEK is an appropriate treatment for you. To learn more about RAGWITEK, make an appointment with your allergy specialist. To find an allergy specialist near you, click here. If you'd like more information, click here.

You should not take RAGWITEK if:

  • You have severe, unstable or uncontrolled asthma.
  • You have had a severe allergic reaction in the past that included any of these symptoms:
    • Trouble breathing
    • Dizziness or fainting
    • Rapid or weak heartbeat
  • You have ever had difficulty with breathing due to swelling of the throat or upper airway after using any sublingual immunotherapy before.
  • You have ever been diagnosed with eosinophilic esophagitis.
  • You are allergic to any of the inactive ingredients contained in RAGWITEK. The inactive ingredients contained in RAGWITEK are gelatin, mannitol and sodium hydroxide.

The most commonly reported side effects were itching of the mouth, lips, or tongue, swelling under the tongue and throat irritation. These side effects, by themselves, were not dangerous or life-threatening. RAGWITEK can cause severe allergic reactions that may be life-threatening. Symptoms of allergic reactions to RAGWITEK include: trouble breathing, throat tightness or swelling, trouble swallowing or speaking, dizziness or fainting, rapid or weak heartbeat, severe stomach cramps or pain, vomiting or diarrhea; or severe flushing or itching of the skin. For additional information on the possible side effects of RAGWITEK, talk with your allergy specialist or pharmacist. For more information about the possible side effects of RAGWITEK, click here.

It takes time for RAGWITEK to treat your allergies. In clinical studies, people who started taking RAGWITEK at least 12 weeks before the start of ragweed allergy season:

  • Had fewer eye and nose symptoms throughout the same season.
  • Used less symptom-relieving allergy medication throughout the same season.
  • Experienced relief when pollen levels were their highest.

RAGWITEK is taken once daily for about 12 weeks before ragweed pollen season, and throughout the season. Talk to your allergy specialist about how long you should take it. For additional information about taking RAGWITEK, click here.

Take the tablet from the blister package after carefully removing the foil with dry hands. Place the tablet under your tongue right away, where it will dissolve quickly. Do not swallow for 1 minute. Do not take RAGWITEK with food or beverage. Do not eat or drink for 5 minutes after taking the tablet. Wash hands after taking the tablet.

Take the first tablet of RAGWITEK in your allergy specialist's office. After taking the first tablet, you will be watched for at least 30 minutes for symptoms of a serious allergic reaction. If you tolerate the first dose of RAGWITEK, you will continue RAGWITEK therapy at home by taking 1 tablet every day. For a video about how to take RAGWITEK, click here.

If you forget to take RAGWITEK, do not take a double dose. Take the next dose at your normal scheduled time the next day. Take RAGWITEK as prescribed by your allergy specialist until the end of the treatment course. If you miss more than one dose of RAGWITEK, contact your allergy specialist before restarting.

Do not use food or water to take the tablet. Do not drink or eat for 5 minutes after taking the tablet. For a video about how to take RAGWITEK, click here.

You should tell your allergy specialist if you are taking or have recently taken any other medicines, including non-prescription and herbal supplements.

Keep a list of them and show it to your allergy specialist and pharmacist each time you get a new supply of RAGWITEK.

Keep RAGWITEK out of the reach of children. RAGWITEK should be stored at room temperature, 15°C to 30°C (59°F to 86°F). Store RAGWITEK in original package and keep package and tablets dry.

Sign up for a free support program for people with ragweed allergies

Important Safety Information about RAGWITEK 

  • You should tell your doctor if you are taking or have recently taken any other medicines, including medicines obtained without a prescription and herbal supplements. Keep a list of them and show it to your doctor and pharmacist each time you get a new supply of RAGWITEK. Ask your doctor or pharmacist for advice before taking RAGWITEK.
  • Stop RAGWITEK and contact your doctor if you have any of the following after taking RAGWITEK: Any type of a serious allergic reaction; throat tightness that worsens or swelling of the tongue or throat that causes trouble speaking, breathing or swallowing; asthma or any other breathing condition that gets worse or heartburn, difficulty swallowing, pain with swallowing, or chest pain that does not go away or worsens. Also stop taking RAGWITEK following mouth surgery procedures (such as tooth removal) or if you develop any mouth infections, ulcers or cuts in the mouth or throat.
  • The most commonly reported side effects were itching of the mouth, lips, or tongue, swelling under the tongue, or throat irritation. These side effects, by themselves, were not dangerous or life-threatening.
  • Your doctor may decide that RAGWITEK is not the best treatment for you if you have asthma; plan to become pregnant or are breast-feeding; are unable or unwilling to administer epinephrine; or are taking certain medicines, including other allergen immunotherapy.

Click here for additional Important Safety Information about RAGWITEK® (Short Ragweed Pollen Allergen Extract)