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Active Pharma Ingredients / 01 Sep 2026

ATINVICITINIB

Generic Name: ATINVICITINIB

ABSTRACT -

Atinvicitinib is a selective Janus kinase 1 (JAK1) inhibitor developed as a veterinary medicinal product for control of pruritus associated with allergic dermatitis in dogs. It is a small-molecule pyrazole carboxamide derivative with molecular formula C16H17FN6O3.

This document is for structured API information only. It is not a prescribing guide. Clinical use, if any, must follow the approved local label, trial protocol, and specialist medical supervision.

DOSAGE -

  • Dosage must be prescribed by a licensed veterinarian.
  • Administer only to dogs that meet label criteria for age, body weight, and diagnosis.
  • Do not adjust dose without veterinary guidance.
  • Periodic recheck and monitoring may be required for chronic allergic skin disease.

SIDE EFFECTS–

Possible side effects and safety concerns include:

  • Vomiting, diarrhea, reduced appetite, or lethargy
  • Skin or ear infections may occur in susceptible dogs
  • Changes in blood counts or clinical chemistry may require monitoring
  • Excessive thirst, behavioral changes, or worsening skin disease should be reported
  • Allergic reactions are possible with any medicinal product.

ALLERGIC REACTIONS -

Hypersensitivity to Atinvicitinib or related compounds/products may occur. Symptoms may include:

  • Immediate urticaria or generalized rash
  • Facial, lip, tongue, or throat swelling
  • Wheezing or breathing difficulty
  • Dizziness, collapse, or anaphylaxis

Important: Patients who develop an allergic reaction to Atinvicitinib should seek immediate medical attention and inform all future healthcare providers of the allergy.

DRUG INTERACTIONS-

Atinvicitinib may interact with certain medicines, protocols, vaccines, clinical conditions, or procedures. Caution is needed with:

  • Other immunomodulators, corticosteroids, or biologics may increase immune-suppression risk.
  • Vaccination timing should be reviewed by the veterinarian.
  • Concurrent antimicrobials or antifungals should be used only when clinically indicated.
  • Do not combine with other JAK inhibitors unless specifically directed.

Patients should inform healthcare providers about all prescription medicines, over-the-counter medicines, herbal products, vaccines, and supplements they are using.

PREAUTIONS–

  • Use only after veterinary diagnosis of allergic dermatitis or atopic dermatitis.
  • Screen for infections, demodicosis, neoplasia risk, or other causes of itching as appropriate.
  • Use caution in breeding, pregnant, or lactating animals unless label supports use.
  • Owners should report persistent vomiting, lethargy, infection, or worsening lesions.

WARNINGS –

  • Veterinary use only; not for human use.
  • Keep tablets secured away from children and other animals.
  • Do not use in dogs outside approved age or weight limits unless directed by a veterinarian.
  • Seek urgent veterinary care for facial swelling, collapse, or severe reaction.

Have any questions? or Need help Contact us – 022 6163 6163 | support@medicus.com

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