How Does Prednisolone Affect a Cat’s Feelings and Behavior?
Prednisolone is a commonly prescribed corticosteroid for cats, valued for its potent anti-inflammatory and immunosuppressive properties. Vets often use this medication to manage a wide array of conditions ranging from allergies and asthma to inflammatory bowel disease and cancer. But how does it truly make your cat feel?
Understanding Prednisolone in Cats
Prednisolone is the active form of prednisone—a synthetic corticosteroid—converted in the liver. Cats don't efficiently metabolize prednisone into prednisolone, so veterinarians generally prescribe prednisolone directly.
This steroid works by reducing inflammation and suppressing the immune response. As powerful as it is in treating serious conditions, it's essential for cat owners to be informed about its effects on their pets.
Common Physical and Behavioral Effects of Prednisolone
Cats undergoing prednisolone therapy may exhibit a range of both temporary and persistent changes in their physical condition and behavior:
- Increased Thirst and Urination: Cats may drink water more frequently and urinate more often, necessitating more frequent litter box cleaning.
- Increased Appetite: A sudden boost in appetite is common, which can lead to weight gain if not monitored properly.
- Lethargy or Restlessness: Some cats may become unusually sleepy, while others could show signs of restlessness.
- Panting: Although rarer in cats than in dogs, some may experience increased respiratory rate or panting.
- Gastrointestinal Upset: Vomiting or diarrhea may occur, especially if medication isn’t administered with food.
- Behavioral Changes: Cats might act out of character—more agitated, grumpy, or even depressed.
Long-Term Effects and Risks
When prednisolone is administered over extended periods or at high doses, the risk of more serious side effects increases:
- Weakened Immune System: Making the cat more susceptible to infections, especially of the urinary tract or skin.
- Diabetes Mellitus: Prolonged use can disturb glucose metabolism.
- Muscle Wasting and Poor Coat: Loss of muscle mass and deterioration in coat quality are also concerns.
- Pot-Belly Appearance: Abdominal enlargement may develop due to fat redistribution and muscle weakening.
- Gastrointestinal Ulcers: A serious risk involving internal bleeding; owners must watch for black/tarry stools or vomiting blood.
- Cushing's Disease: Occurs due to excessive exposure to corticosteroids.
How Cats Tolerate Prednisolone
Interestingly, cats often tolerate corticosteroids better than dogs. Still, the risk of side effects is real, particularly during prolonged use. Regular vet visits are crucial to monitor treatment response and adjust dosage.
Administration and Dosage Considerations
The drug is commonly administered in the form of tablets, compounded liquids, or transdermal lotions. Dosage varies according to the cat’s condition—ranging approximately from 0.5 mg/kg to 2 mg/kg per day. It is recommended to administer the drug with food to reduce gastrointestinal issues.
When to Be Concerned
Cat owners should immediately consult a veterinarian if the following symptoms appear:
- Blood in stool or vomit
- Black or tarry stools
- Sudden lethargy or loss of appetite
- Extreme thirst or urination
- Behavioral shifts like aggression or depression
- Signs of infection or fever
Alternatives to Prednisolone in Cats
Several alternatives may be available depending on the cat’s medical condition:
- Inhaled Corticosteroids: Especially useful for managing feline asthma
- NSAIDs: Non-steroidal anti-inflammatory drugs under strict veterinary supervision
- Supplements: Omega-3 fatty acids or glucosamine for joint support
- Antihistamines and Immunosuppressants: Alternative medications for allergic and autoimmune conditions
Conclusion
Prednisolone is a powerful medication that can significantly improve a cat’s quality of life when used appropriately. However, it’s not without risks. Cats undergoing corticosteroid therapy should be closely monitored for both short-term side effects like increased appetite or mild behavior changes, and long-term complications such as diabetes or Cushing’s disease. Always follow your veterinarian’s instructions and reach out if you observe any unusual signs—proactive management can help your cat reap the benefits of prednisolone while minimizing discomfort and risk.





