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Odactra (dermatophagoides farinae / dermatophagoides pteronyssinus)

Prescription requiredOnly Available By Prescription
What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


Odactra contains allergen extract from common household dust mites. Dust mite allergies can trigger breathing problems or skin reactions. Odactra is used to help your body develop an immunity to dust mites, and reduce symptoms such as sneezing, itching, and eye redness. This medicine is for use in adults up to age 65. Odactra may also be used for purposes not listed in this medication guide.

Buy Odactra (dermatophagoides farinae / dermatophagoides pteronyssinus) online from online Canadian Pharmacy |


Your doctor may perform an allergy skin test or blood test to make sure you are allergic to the specific allergen contained in this medicine. Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed. Your doctor will give you the first dose and watch you closely for at least 30 minutes, to make sure you do not have an allergic reaction. Odactra is a sublingual tablet that dissolves under your tongue. Do not chew this tablet or swallow it whole. To take the sublingual tablet: • Remove a tablet from the package only when you are ready to take the medicine. • Use dry hands to remove the tablet and place it in your mouth. • Place the sublingual tablet under your tongue and allow it to dissolve completely. • Do not swallow for at least 1 minute. Do not eat or drink anything for at least 5 minutes. Wash your hands after handling the sublingual tablet. A child using Odactra should be supervised by an adult while taking this medicine. Your doctor may also prescribe epinephrine (Epi-Pen) to keep with you in case you ever have an allergic reaction to Odactra. If you need oral surgery or dental work, or if you have a mouth injury or infection, you may need to stop using this medicine until your mouth heals. Tell your doctor if the sublingual tablets cause any mouth irritation. Store tablets in the blister pack at room temperature, away from moisture and heat.


Odactra contains house dust mite allergen extract from Dermatophagoides farinae and Dermatophagoides pteronyssinus.


You should not use this medicine if you have uncontrolled asthma, or if you have a history of allergic reaction to an allergen or pollen extract medicine, or an allergic reaction that affected your esophagus. You may not be able to use Odactra if you have breathing problems, heart disease, or high blood pressure, or if you use certain medicines. Odactra may cause a severe allergic reaction. Your doctor will give you the first dose and watch you closely to make sure you do not have a reaction.

Side Effects

Odactra may cause a severe allergic reaction. Stop taking the medicine and get emergency medical help if you have any of these signs of an allergic reaction: • severe dizziness or a light-headed feeling (like you might pass out); • fast heart rate; • stomach pain, vomiting, diarrhea; • hives, itching, flushing (warmth, redness, or tingly feeling); • cough, chest tightness, wheezing, trouble breathing; or • swelling of your face, lips, tongue, or throat. If you stop taking Odactra after having an allergic reaction, do not start taking the medicine again without your doctor's advice. Odactra may cause serious side effects. Call your doctor at once if you have: • severe mouth or throat irritation; • breathing problems; or • choking feeling, chest pain, trouble swallowing. Common side effects of Odactra may include: • pain, swelling, itching or sores in your mouth or on your tongue; • throat irritation; • altered sense of taste; • cough, sore throat, sinus pain; • nausea; or • itching in your ears. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.