Alpha Gal Syndrome C5442181
An immune system reaction to alpha-gal sugar in meat and dairy, causing delayed allergic responses. Associated with tick exposure. Avoidance of trigger foods is key.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Delayed anaphylaxis
Delayed pruritus
(integumentary)Generalized symptoms
(immunologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Delayed urticaria
(integumentary)Delayed abdominal pain
(gastrointestinal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Strict mammalian product elimination
Lifelong avoidance of all mammalian-derived products including meat, organ meats, broths, and lard. This includes gelatin, dairy, and certain medications containing mammalian ingredients. Working with a dietitian is recommended for nutritional adequacy.
Emergency anaphylaxis management
Prompt administration of intramuscular epinephrine for severe reactions, followed by emergency medical care. Antihistamines and corticosteroids may be used as adjuncts after epinephrine administration.
Additional treatment options
Symptomatic antihistamine treatment
Scheduled or as-needed H1 antihistamines to control chronic symptoms such as urticaria, flushing, and pruritus. Oral formulations are preferred for consistency in absorption.
medicationTick bite prevention
Comprehensive tick avoidance measures including protective clothing, insect repellents containing DEET or permethrin-treated clothing, and thorough tick checks after outdoor activities. Reducing tick exposure may help prevent worsening or reactivation of the condition.
lifestyleAllergy education and support
Education programs for patients and families about reading labels, identifying hidden allergens, and recognizing early symptoms of reactions. Support groups can help cope with the lifestyle changes required.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Alpha Gal Syndrome C5442181?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Commins SP, Platts-Mills TAE. Guidelines for the diagnosis and management of alpha-gal syndrome. J Allergy Clin Immunol Pract. 2020.
Steinke JW, Platts-Mills TAE, Commins SP. The alpha-gal allergen: from tick to red meat allergy. Immunol Allergy Clin North Am. 2023.
Mullins RJ, Dear K, Hoxey J. Delayed allergic reactions to mammalian meat: clinical characteristics and outcomes. Ann Allergy Asthma Immunol. 2019.
Wilson JM, Schuyler AJ, Commins SP. Epidemiology of alpha-gal syndrome in the United States: a systematic review and meta-analysis. J Am Acad Dermatol. 2022.
Medication Comparisons
Compare medications used to treat Alpha Gal Syndrome C5442181. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis 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 20, 2026. · Read our editorial policy