Equine Metronidazole (Rx)
This drug is an antibiotic that fights anaerobic bacterial infections. Metronidazole is available as an injectable solution and oral tablets.
WHAT IS THIS DRUG?
- An antibiotic effective against bacteria that do not require oxygen for growth
- Given by intramuscular (IM) injection, intravenous (IV) injection or by mouth
REASONS FOR PRESCRIBING:
- Used to treat susceptible bacterial infections.
- Commonly used for the treatment of colitis, severe foal diarrhea, and uterine infections in horses
Metronidazole should be given according to your veterinarian’s instructions. Read and follow the prescription label and route of administration carefully.
Give the exact amount prescribed and only as often as directed.
Give this medication for as long as your veterinarian directs. Do not skip doses or stop giving the medication without consulting your veterinarian.
Baseline blood work may be recommended to assess your horse’s general health before starting this medication.
Dose adjustments may be made based upon an assessment of how your horse is responding clinically.
Ideally, give this medication at the same time(s) daily.
Common areas for intramuscular (IM) injections include the base of the neck and the hamstrings as they are both large muscles. The base of the neck provides a relatively safe location for the handler and is located in a triangle formed by the crest, the neck vertebrae, and the point of the shoulder. The hamstring locations should only be used by experienced handlers as there are increased safety risks. The top of the rump is not a recommended site because abscesses in this location are difficult to treat.
If you are unsure how your horse will react to an injection, request assistance or demonstration by your veterinarian.
WHAT IF A DOSE IS MISSED?
If a dose is missed, give it as soon as you can. If it is time already for the next dose, skip the missed dose and go back to the normal schedule. Do not give two doses at the same time.
STORAGE AND WARNINGS:
Metronidazole should be stored in a childproof container in a cool, dry place at room temperature away from heat and direct sunlight.
Keep this and all medication out of reach of children and pets.
Call your physician immediately if you accidentally take this product.
POTENTIAL SIDE EFFECTS:
- This medication may cause a transient decrease in food consumption
- There is a risk for antibiotic associated diarrhea or colic
- There is a risk for injection site discomfort with intramuscular (IM) injections
- High doses have been reported to cause altered bacterial flora resulting in large intestinal inflammation, abnormal stool, reduced appetite, weight loss, inactivity as well as incoordination and depression
- All antibiotics have the potential to cause an overgrowth of nonsusceptible organisms
- All injectable medications have the potential to cause an immediate allergic or anaphylactic reaction. Affected animals may have a swelling, hives, changes in respiration, and display signs of agitation. This can be a severe and life threatening reaction, immediate treatment with epinephrine is often required.
- Notify your veterinarian immediately if your horse experiences any adverse reactions to this medication
CAN THIS DRUG BE GIVEN WITH OTHER DRUGS?
- Metronidazole is commonly used in combination with other antibiotics
- Avoid concurrent use with cimetidine, phenobarbital, and warfarin
- Drugs other than those listed may also interact with Metronidazole
- Do not give new food or medications without first talking to your veterinarian
- If your horse experiences any unusual reactions when taking multiple medications, contact your veterinarian
Contact your veterinarian immediately if your horse receives more than the prescribed amount.
WHAT ELSE SHOULD I KNOW?
Notify your veterinarian if your horse’s condition does not improve or worsens despite this treatment.
This product should not be used in horses intended for human consumption.
Check with the appropriate regulatory body regarding the use in competition horses.
As with all prescribed medication, Metronidazole should only be given to the horse for which it was prescribed.
It should be given only for the condition for which it was prescribed.
This is just a summary of information about Metronidazole. If you have any questions or concerns about this product or for the condition it was prescribed, please contact your veterinarian.