What Are Allergy Shots Called? Every Name for Allergen Immunotherapy
Allergy shots are known by many names depending on context: subcutaneous immunotherapy (SCIT) in medical literature, allergen immunotherapy (AIT) in clinical guidelines, desensitization injections in UK/European usage, and hyposensitization in older literature. The WHO and WAO officially use allergen immunotherapy as the standard global term. Critical disambiguation: Kenalog (triamcinolone) steroid shots are completely different and often dangerously confused with immunotherapy. Learn which term to use when.
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Allergy shots are most commonly called subcutaneous immunotherapy (SCIT) in medical literature and allergen immunotherapy in clinical guidelines. Patients often say allergy shots, allergy injections, or desensitization — all referring to the same treatment.
Every Name for Allergy Shots — and Which One to Use When
If you have spent time reading about allergy shots online or talking to your doctor, you may have encountered a confusing array of terms: SCIT, allergen immunotherapy, AIT, desensitization, hyposensitization, allergy injections. All of these terms describe the same core treatment — subcutaneous allergen immunotherapy — but each evolved in a different clinical or geographic context.
The term you use depends on who you are talking to. Telling your doctor you want allergy shots is immediately understood. Searching medical literature using SCIT or allergen immunotherapy finds peer-reviewed studies. Discussing treatment with a UK-trained allergist, you might hear allergy injections or desensitization instead. Understanding this vocabulary helps you communicate clearly with your care team and interpret information from different sources accurately.
Before pursuing any form of immunotherapy — regardless of what it is called — accurate allergy testing is the essential first step to identify which allergens are driving your symptoms. Curex at-home allergy testing provides this diagnostic foundation through a simple finger-prick blood test covering 40+ environmental allergens, giving your allergist the information needed to recommend and formulate the right treatment.
One critical disambiguation is not a matter of terminology preference but of patient safety: Kenalog (triamcinolone acetonide) steroid shots are sometimes called allergy shots by patients who receive them for temporary symptom relief — but they are a completely different medication with completely different mechanisms and risks. Using the wrong term with a new provider could lead to a dangerous misunderstanding about your treatment history.
SCIT and allergen immunotherapy are the standard clinical terms. Allergy shots and allergy injections are the standard patient terms. Desensitization is acceptable but technically imprecise. Kenalog steroid shots are NOT allergy shots and should never be conflated. Whatever term you use — allergy shots, SCIT, allergen immunotherapy, or desensitization injections — the underlying treatment is the same SCIT immunotherapy that Curex delivers as the At-Home Allergy Shot Kit: a personalized serum sterile-compounded to USP <797>, one weekly subcutaneous injection self-administered at home, prescribed and overseen by a board-certified allergist, at $129/month.
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See if at-home shots are right for youFrequently asked questions
What is the medical term for allergy shots?
The standard medical term for allergy shots is subcutaneous immunotherapy, abbreviated SCIT. The word subcutaneous refers to the injection being delivered beneath the skin into the fat layer of the upper arm. Immunotherapy indicates that the treatment works by modifying the immune system's response rather than suppressing symptoms. The broader umbrella term allergen immunotherapy (AIT) covers all forms — including SCIT, SLIT tablets, SLIT drops, and oral immunotherapy (OIT) — and is the term used in WHO and World Allergy Organization position papers. When reading medical literature, SCIT and AIT are the terms you will encounter most frequently in peer-reviewed journals like JACI (Journal of Allergy and Clinical Immunology) and the Cochrane Database of Systematic Reviews.
What is the difference between allergy shots and desensitization shots?
Allergy shots and desensitization shots are terms used interchangeably by many patients and clinicians, but technically they refer to slightly different concepts. True desensitization — as used in drug allergy medicine — means inducing a temporary state of non-reactivity by giving escalating doses over hours to days. It wears off when the treatment stops. Allergen immunotherapy (allergy shots) produces something more durable: active immune tolerance that can persist 3-12 years after treatment ends. Despite this distinction, desensitization is widely used as a synonym for allergen immunotherapy in European medical literature and in lay language. The clinical outcome being described is the same; the technical accuracy differs. Modern guidelines favor allergen immunotherapy or SCIT over desensitization for precision.
Are allergy shots the same as Kenalog shots?
No, allergy shots (immunotherapy) and Kenalog shots (triamcinolone acetonide) are completely different treatments and should never be confused. Kenalog is a corticosteroid — a synthetic steroid that suppresses broad immune and inflammatory activity. When injected for allergy symptoms, it provides 3-6 weeks of non-specific symptom relief by dampening the entire inflammatory response. It provides no allergen-specific immune reprogramming and no lasting benefit after the steroid wears off. Repeated Kenalog injections carry real risks: adrenal suppression, bone density loss, elevated blood glucose, and weight gain. AAAAI and ACAAI guidelines explicitly discourage routine Kenalog injections for allergic rhinitis management. Allergy immunotherapy shots, by contrast, contain purified allergen extracts and produce lasting disease-modifying immune changes over 3-5 years.
What are allergy shots called in the UK or Australia?
In the UK and Australia, allergy shots are most commonly called allergy injections or desensitization injections rather than allergy shots, reflecting British English usage of injections rather than shots. The clinical term allergen immunotherapy is standard in both countries among allergists. In the UK, SCIT has been offered through the NHS (National Health Service) for specific allergens, though access varies by region. The WAO (World Allergy Organization) and EAACI (European Academy of Allergy and Clinical Immunology) use allergen immunotherapy as the standard clinical term internationally, regardless of country. SLIT (sublingual immunotherapy) is perhaps relatively more widely used in European clinical practice compared to the US, where SCIT has historically dominated.
What is the difference between allergen immunotherapy and allergy immunotherapy?
Allergen immunotherapy and allergy immunotherapy are functionally the same term used in slightly different contexts. Allergen immunotherapy is the more precise clinical formulation — used in WHO position papers, AAAAI/ACAAI practice parameters, and peer-reviewed journals — because it specifies that the treatment targets specific allergens rather than allergic disease generally. Allergy immunotherapy is the patient-friendly version of the same term, commonly used in patient education materials, lay health websites, and clinical practice. Both refer to the same category of treatment: SCIT, SLIT tablets, SLIT drops, and other forms that induce allergen-specific immune tolerance. Either term is understood in any clinical conversation about immunotherapy for allergic disease.
Is there a brand name for allergy shots?
There is no single brand name for allergy shots because each patient's vial is a custom-compounded pharmaceutical made from individual allergen extract concentrates ordered by the allergist from manufacturers. The extract concentrates have technical product names (such as 'Standardized Cat Hair Extract 10,000 BAU/mL' from a manufacturer like Greer Laboratories or ALK-Abello) but these are not consumer-facing brand names. This contrasts with sublingual immunotherapy tablets, which do have brand names: Grastek (Timothy grass), Ragwitek (ragweed), and Odactra (dust mite) — all FDA-approved products manufactured by Merck with standardized doses. The custom-compounded nature of SCIT vials is precisely why no brand name exists.
What does SCIT stand for in allergy treatment?
SCIT stands for subcutaneous immunotherapy — the clinical abbreviation for allergy shots. Subcutaneous refers to the injection route: beneath the skin (sub = under, cutaneous = relating to skin) into the subcutaneous fat layer of the upper arm, as opposed to intramuscular (into muscle) or intravenous (into a vein). Immunotherapy indicates that the treatment modifies immune responses rather than simply suppressing symptoms. SCIT is distinguished from SLIT (sublingual immunotherapy, administered under the tongue) and OIT (oral immunotherapy, swallowed). In medical literature, SCIT specifically refers to the injectable form of allergen immunotherapy, while AIT (allergen immunotherapy) is the broader umbrella including all delivery routes.
What is hyposensitization and is it the same as allergy shots?
Hyposensitization is an older European term for allergen immunotherapy — largely synonymous with allergy shots — that has been progressively replaced in modern clinical literature by the more precise allergen immunotherapy or SCIT. The term hypo (below normal) combined with sensitization conveys the concept of reducing the immune system's excessive sensitivity to allergens. It appears frequently in pre-2000s European allergy literature and is still used occasionally in some clinical contexts outside the US. Modern EAACI guidelines and WAO position papers prefer allergen immunotherapy, which more accurately describes the mechanism: not simply reducing sensitivity but actively inducing immune tolerance through a Th2-to-Treg shift. If you encounter hyposensitization in older clinical documents or European medical records, it refers to what is now commonly called allergen immunotherapy or allergy shots.
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This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. Content reviewed by board-certified allergists at Curex.