Metronidazole 10% Liquid Solution for Horses (100 mg/mL)

Metronidazole 10% Liquid Solution is a concentrated oral antimicrobial formulated for horses with confirmed anaerobic bacterial or protozoal gastrointestinal infections. When properly dosed, it supports digestive recovery and helps restore appetite and hydration status.

Animals

• Horses
• Ponies
• Performance horses
• Broodmares (under veterinary supervision)
• Foals (under veterinary supervision)

Symptoms & Indications

Commonly used in horses experiencing:

• Acute or chronic diarrhea
• Foul-smelling or watery manure
• Colitis associated with anaerobic bacteria
• Reduced appetite
• Weight loss
• Lethargy
• Signs of abdominal discomfort

Metronidazole is most frequently indicated for anaerobic bacterial infections (e.g., Clostridium species) and certain protozoal infections when confirmed by veterinary diagnosis.

Dosage and Application Instructions

Active Ingredient

Metronidazole

Concentration

10% solution = 100 mg/mL

Treatment Dose (Horses)

Standard equine dosing range:

15–25 mg/kg every 8–12 hours
(depending on severity and veterinary direction)

Dose Conversion

Using 25 mg/kg as reference:

25 mg/kg ÷ 100 mg/mL = 0.25 mL per kg
0.25 mL/kg ÷ 2.2 = 0.113 mL per lb

Final Recommended Dose

15–25 mg/kg
0.07–0.11 mL per lb
Administer every 8–12 hours as directed by a veterinarian

Administration Method

• Administer orally using a dosing syringe.
• May be mixed with a small amount of feed to ensure full consumption.
• Accurate body weight estimation is critical for proper dosing.

Dosage Frequency

Every 8–12 hours

Dosage Duration

Commonly 5–7 consecutive days

Treatment duration varies by diagnosis and must be confirmed by a veterinarian.

Prevention Dose

Routine preventive use is not recommended. Metronidazole should be used based on confirmed infection and veterinary evaluation.

Size Selection Guide

• 30 mL (1 oz) → Small ponies or short-term supplemental treatment
• 120 mL (4 oz) → Single-horse short treatment course
• 240 mL (8 oz) → Larger horses or extended treatment
• 946 mL (32 oz) → Barns with multiple horses
• 1 Gallon (128 oz) → Veterinary clinics, rescues, and large-scale equine operations

Select size based on horse weight, number of animals, and treatment duration.

FAQs

What does Metronidazole treat in horses?

It is used to manage anaerobic bacterial infections such as Clostridium spp.–associated colitis and certain protozoal infections when diagnosed by a veterinarian.

How fast does it work?

Some horses show clinical improvement within 24–48 hours, though the full prescribed treatment course should be completed.

Can it be used preventively?

Routine preventive use is not recommended. Treatment should follow confirmed diagnosis.

How is it administered?

It is given orally via syringe or mixed with a small amount of feed to ensure accurate dosing.

Is it safe for young animals like foals?

Use in foals should only be done under veterinary supervision to ensure proper dosing and monitoring.

Is it safe for pregnant mares?

Use in pregnant or breeding mares should only be done under veterinary supervision, as dosing considerations vary by case.