What to Do If Your Cat Loses Appetite After Deworming

Understanding Post-Deworming Appetite Loss in Cats

It’s common for cats to experience temporary appetite reduction within 24-48 hours after deworming. This occurs because:

• Deworming medications (e.g., pyrantel pamoate, fenbendazole) irritate the gastrointestinal tract

• Dying parasites release toxins causing nausea

• Stress from administration alters eating patterns

Critical Timeline: When to Act

5 Proven Recovery Strategies

1. Appetite-Stimulating Foods
   Warm strong-smelling options like sardines in springwater or powdered FortiFlora probiotic sprinkled on food. Avoid onion/garlic-containing products.

2. Hydration Protocol
   Offer electrolyte-enhanced water (unflavored Pedialyte) via syringe if intake decreases. Subcutaneous fluids may be needed if skin tent test >2 seconds.

3. Digestive Support
   Veterinarian-recommended probiotics like Proviable DC restore gut flora disrupted by dewormers. Avoid OTC human supplements.

4. Environmental Adjustment
   Reduce stressors: Separate from other pets during feeding, use ceramic bowls (prevents plastic smell aversion), and maintain 22-25°C ambient temperature.

5. Medical Interventions
   If anorexia exceeds 48 hours:

   • Anti-nausea injections (Cerenia)

   • Appetite stimulants (Mirtazapine transdermal gel)

   • IV fluid therapy for dehydration

When Emergency Vet Care is Non-Negotiable

Seek immediate veterinary attention if these danger signs appear:

• Yellow-tinged gums (jaundice indicator)

• Temperature <37.2°C or >40°C

• Projectile vomiting containing bile

• Lethargy preventing standing

Prevention for Future Treatments

• Request emesis-preventing injection (maropitant) pre-deworming for sensitive cats

• Use liquid formulations instead of pills if administration causes trauma

• Schedule treatments before weekends to monitor reactions

Most cats resume normal eating within 2 days. Persistent cases may indicate:

• Underlying conditions masked by parasites

• Medication overdose

• Rare drug reactions requiring antidotes

Always maintain post-treatment communication with your veterinarian and document recovery progress hourly during critical periods. Early intervention prevents 92% of severe complications according to 2024 Journal of Feline Medicine studies.