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PetDosageChart

Nitroimidazole Antibiotic / Antiprotozoal · For Cats · 4 lb

How much Metronidazole for a 4 lb cat?

A 4 lb cat (1.8 kg) should receive approximately 27.2 mg of Metronidazole per dose, given Every 12 hours.

This information is for educational purposes only. Always consult your veterinarian before giving medication to your pet. Do not use this calculator for emergencies, overdoses, pregnancy, very young animals, very old animals, pets with liver/kidney disease, or pets taking multiple medications.

Dosage data is sourced from Plumb's Veterinary Drug Handbook and cross-referenced with Merck Veterinary Manual and DailyMed where applicable. Independent DVM review is being added page by page. See our methodology.

Dosage · 4 lb cat

Metronidazole dose for a 4 lb cat

Low Dose

18.1

mg

Standard

27.2

mg

Max Safe

45.4

mg

Frequency

Every 12 hours

Weight in kg

1.8 kg

Always confirm with your veterinarian before administering medication. These calculations are estimates based on published veterinary pharmacology references.

Other Weights

Metronidazole for a different size cat

FAQ · 4 lb cat

Questions about Metronidazole for a 4 lb cat

How much Metronidazole for a 4 lb cat?
A 4 lb cat should receive approximately 27.2 mg of Metronidazole (Metronidazole) per dose, given Every 12 hours. Always confirm with your veterinarian before administering medication.
What is the safe dose range of Metronidazole for a 4 lb cat?
The published dose range for a 4 lb cat is roughly 18.1 mg (low) to 45.4 mg (max safe), with 27.2 mg as the typical standard dose. Frequency: Every 12 hours.
How often can I give Metronidazole to a 4 lb cat?
Metronidazole is typically given Every 12 hours. Do not exceed the recommended frequency without veterinary guidance.

Need a different weight?

Use the calculator on the main Metronidazole page for any exact weight, or read the full dosage chart and safety information.

Full Metronidazole dosage guide →

Sources · 09

Sources & references

The dosage information on this page is compiled from the following veterinary and pharmaceutical references:

  • Plumb's Veterinary Drug Handbook — the standard veterinary pharmacology reference used by veterinarians worldwide.
  • Merck Veterinary Manual — a trusted, peer-reviewed resource for veterinary professionals and pet owners.
  • DailyMed (FDA Drug Labels) — official FDA-approved drug labeling and prescribing information for Metronidazole.

Read more about our methodology and how we calculate dosages.