Introduction
In multi-cat households, parasites can spread rapidly between cats, resulting in recurring infections and health complications. Coordinated deworming and strict hygiene measures are essential to break the cycle of reinfection. This guide outlines best practices for synchronizing treatments, maintaining cleanliness, and preserving feline wellness in homes with multiple cats.

1. Risks Unique to Multi-Cat Environments

• Shared Litter Boxes: Parasite eggs shed in feces can contaminate common areas, enabling rapid transmission.

• Close Contact: Grooming, play, and sleeping in close proximity facilitate parasite spread.

• Variable Immunity: Kittens, seniors, and immunocompromised cats are especially vulnerable, heightening risk for the entire group.

2. Synchronizing Deworming Treatments

• Simultaneous Administration:

  • Treat all cats in the household on the same day with the same dewormer type and dosage (adjusted for weight).

  • Reduces the window for reinfection and ensures uniform parasite clearance.

• Recommended Products:

  • Fenbendazole (Panacur®): 50 mg/kg orally once daily for three consecutive days; broad-spectrum coverage.

  • Praziquantel Oral Tablets: 5–10 mg/kg as a single dose for tapeworm control.

  • Selamectin (Revolution®): Monthly topical covering fleas, ear mites, roundworms, hookworms.

3. Fecal Examinations and Monitoring

• Baseline Testing:

  • Conduct a fecal float for each cat before initiating the synchronized protocol to identify specific parasites.

• Follow-Up Testing:

  • Repeat fecal exams 2–3 weeks post-treatment to confirm parasite elimination.

• High-Risk Groups:

  • Test kittens every 4 weeks until 16 weeks of age.

  • Test seniors and immunocompromised cats every 3 months.

4. Environmental Hygiene and Sanitation

• Litter Box Management:

  • Use one litter box per cat plus one extra.

  • Scoop daily and replace litter entirely weekly; disinfect boxes monthly with a dilute bleach solution (1:32 ratio).

• Bedding and Soft Furnishings:

  • Wash cat beds, blankets, and removable furniture covers in hot water weekly.

  • Vacuum carpets and upholstery at least twice a week.

• Hard Surfaces:

  • Mop floors with pet-safe disinfectant every 3–4 days.

  • Clean food bowls, water dishes, and feeding areas daily with hot, soapy water.

5. Preventive Measures and Lifestyle Adjustments

• Flea Control:

  • Monthly application of a broad-spectrum flea and parasite preventive (e.g., Revolution®).

  • Treat all pets (cats and dogs) in the household concurrently.

• Outdoor Access:

  • Limit unsupervised outdoor roaming to reduce exposure to contaminated soil and intermediate hosts (rodents, birds).

• Nutrition and Immune Support:

  • Provide balanced, high-quality cat food to strengthen immune systems.

  • Consider probiotic supplements to maintain healthy gut flora post-deworming.

Conclusion
Coordinated deworming, rigorous sanitation, and preventive strategies are vital in multi-cat households to curb parasite transmission. By treating all cats simultaneously, maintaining a clean environment, and monitoring through regular fecal exams, owners can ensure a parasite-free, harmonious home for their feline companions.