Biological Response Modifiers

Biological response modifiers affect immune activity and are used for selected diseases. Administration and monitoring depend on the product; unwanted effects can include digestive upset, fatigue or allergic reactions.

Editorial overview based on the linked VCA resource; this is not the complete original handout. Prepared 2026-10-03; not veterinarian-reviewed. Diagnosis and treatment, including medication choice and dose, require veterinary guidance.