Chrysops Vittatus Whole Allergenic Extract
Chrysops Vittatus Whole Allergenic Extract is a diagnostic and therapeutic agent derived from horsefly (deer fly) whole-body extract. This medication is used by allergists and immunologists to identify and treat hypersensitivity reactions to Chrysops species bites. The extract contains the full range of allergenic proteins from these insects for comprehensive allergy assessment and management.
A diagnostic and therapeutic allergenic extract used to identify and treat horsefly (Chrysops) allergies through skin testing and potential immunotherapy.
Key facts at a glance
- RxNorm
- 2627247
- Generic
- Chrysops Vittatus Whole Allergenic Extract
- Class
- unclassified
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- solution
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Diagnosis and treatment of IgE-mediated hypersensitivity to Chrysops vittatus (horsefly/deer fly). Used for allergic rhinitis, skin reactions, and systemic allergic responses following bites from this insect species.
Contains allergen proteins from whole Chrysops vittatus bodies that trigger controlled immune responses. For diagnosis: skin prick testing identifies specific IgE antibodies. For therapy: gradual desensitization by building immune tolerance to the allergen.
Should only be administered by healthcare providers trained in allergenic extract therapy with emergency equipment readily available. Skin testing carries risk of systemic reactions. Contraindicated in uncontrolled asthma, severe cardiovascular disease, and during pregnancy unless specifically indicated.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy