What is Odactra? Uses, warnings & side effects

Updated May 14, 2025  •  Published Dec 30, 2020

Odactra overview

BRAND NAMES:

  • Odactra

Generic Names:

  • Odactra

Uses:

  • Treats hay fever caused by house dust mites.

Therapeutic Classes:

  • Immunological Agent

Forms:

  • Tablet

How it’s taken:

  • By mouth

What is Odactra used for?

What form(s) does Odactra come in?

  • Tablet

What are common Odactra dosages?

  • Tablet Sublingual 12SQ-HDM

Odactra images - What does Odactra look like?

  • Odactra
    12sq-hdm tablet sublingual

How to take Odactra

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep the medicine in the original package until use to protect from moisture.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Wash your hands after handling the tablet.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Your doctor will give you a medicine called epinephrine. This is to be used to relieve a severe allergic reaction. Your doctor will give you instructions on how to use it properly.

  • To use: Take the tablet out from the blister with dry hands. Place the tablet under your tongue where it will dissolve within 10 seconds. Avoid swallowing for at least 1 minute.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Do not eat or drink any liquid for 5 minutes after taking the medicine.

  • You must take your first dose of this medicine in a doctor's clinic or hospital. This is done to observe you for at least 30 minutes for possible allergic reactions. If the first dose is well tolerated, then you can take this medicine at home.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Your doctor will give you a medicine called epinephrine. This is to be used to relieve a severe allergic reaction. Your doctor will give you instructions on how to use it properly.

  • To use: Take the tablet out from the blister with dry hands. Place the tablet under your tongue where it will dissolve within 10 seconds. Avoid swallowing for at least 1 minute.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep the medicine in the original package until use to protect from moisture.

  • You must take your first dose of this medicine in a doctor's clinic or hospital. This is done to observe you for at least 30 minutes for possible allergic reactions. If the first dose is well tolerated, then you can take this medicine at home.

  • Do not eat or drink any liquid for 5 minutes after taking the medicine.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Wash your hands after handling the tablet.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

What to do if you miss a dose of Odactra

Odactra contraindications - Who shouldn't take Odactra?

  • This medicine is not right for everyone. Do not use it if you have a severe and poorly controlled asthma, or a history of eosinophilic esophagitis or allergic reaction (including allergic reaction caused by taking other allergen immunotherapy).

Odactra warnings

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have heart disease, heart rhythm problems, high blood pressure, a recent heart attack, or lung disease. Tell your doctor if you have any sores in your mouth or throat, oral thrush, or wounds in your mouth after dental surgery.

  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

Odactra interactions & what to avoid when taking Odactra

  • Some medicines can affect how house dust mite allergen extract works. Tell your doctor if you are using any of the following:Chlorpheniramine, digoxin, diphenhydramine, or levothyroxineBlood pressure medicineDiuretic (water pill)Ergot medicineMAO inhibitorMedicine to treat depression

Odactra side effects - How does Odactra make you feel?

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Sores or ulcers in the mouth or throat

  • Trouble breathing or swallowing

  • Chest pain, fast or uneven heartbeat

  • Lightheadedness, dizziness, fainting

Less Serious Side Effects

  • Diarrhea, nausea, stomach pain

  • Change in taste