Ragweed Pollen Allergen Extract Dosage

Medically reviewed by Drugs.com. Last updated on Jun 20, 2025.

Usual Adult Dose for Allergic Rhinitis

One tablet sublingually once a day.

Comments:

• Initiate treatment at least 12 weeks before the expected onset of each ragweed pollen season and continue treatment throughout the season.

Use: Treatment of short ragweed pollen-induced allergic rhinitis, with or without conjunctivitis, confirmed by positive skin test or in vitro testing for pollen-specific IgE antibodies for short ragweed pollen.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

US BOXED WARNING:

• Short ragweed allergen can cause life-threatening allergic reactions such as anaphylaxis and severe laryngopharyngeal restriction.
• Do not administer short ragweed allergen to patients with severe, unstable or uncontrolled asthma.
• Observe patients in the office for at least 30 minutes following the initial dose.
• Prescribe auto-injectable epinephrine, instruct and train patients on its appropriate use, and instruct patients to seek immediate medical care upon its use.
• May not be suitable for patients with certain underlying medical conditions that may reduce their ability to survive a serious allergic reaction.
• May not be suitable for patients who may be unresponsive to epinephrine or inhaled bronchodilators, such as those taking beta-blockers.

Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.

Dialysis

Data not available

Other Comments

Administration advice:

• Administer the first dose in a healthcare setting under the supervision of a physician with experience in the field.
• After receiving the first dose, observe the patient for at least 30 minutes to monitor for signs or symptoms of a severe systemic or a severe local allergic reaction.
• Allow the tablet to remain under the tongue until completely dissolved. Do not swallow for at least 1 minute.
• Wash hands after handling the tablet.
• Do not take the tablet with food or beverage. Food or beverage should not be taken for at least 5 minutes after taking the tablet.
• Prescribe auto-injectable epinephrine to patients and instruct them in the proper use of emergency self-injection of epinephrine.

Storage requirements:

• Protect from moisture

See also:

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer