At a Glance
Antimicrobial antibiotic for dogs, cats, and horses
Treatment for tetanus, liver disease, Giardia, Entamoeba, Balantidium, Trichomonas, and oral infections
Also works topically to treat skin infections
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Metronidazole is an antimicrobial antibiotic used for the effective treatment of many different diseases and conditions in dogs, cats, and horses. This medication is geared toward animals who are suffering from dangerous infections such as tetanus and liver disease, as well as from causes of inflammatory bowel diseases like Giardia, Entamoeba, Balantidium, and Trichomonas. It also fights oral infections like periodontal disease. Metronidazole can even be applied externally to fight skin conditions such as acne (particularly in cats).
Metronidazole may also be used with other types of antibiotics (e.g., penicillin, some cephalosporins, and amino-glycosides) to fight off various anaerobic bacteria and protozoal infections, as well as colitis brought on by the prior use of other antibiotic medications.
Metronidazole is the Generic Alternative to Flagyl.
Side Effects and Warnings
As with many antibiotics for cats, dogs, and horses, some side effects may occur. When using Metronidazole, watch for neurologastro-intestinal disorder, lethargy, weakness, neutropenias, hepatoxicity, hematuria, anorexia, nausea, vomiting, and diarrhea. Though not common, serious side effects may occur, such as low white blood cell count, liver failure, and blood in the urine, or dark urine. Long-term use or overdose may cause neurologic symptoms as well. Metronidazole has also been known to cause birth defects, and should not be used by pregnant mothers.
Some medications and antibiotics for cats, dogs, and horses will interact with Metronidazole. Do not combine with any of the following medications: Cimetidine (Tagamet), Phenytoin (Dilantin), Phenobarbital, or Warfarin (Coumadin). Other drugs may also affect Metronidazole, so be sure to consult your veterinarian before starting this medication.
For additional information on using this or any antibiotics for dogs, cats, or horses, talk to your veterinarian or consult with one of our pet care specialists at 1-800-844-1427.
This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian. Always seek the advice of your veterinarian or other qualified professional with any questions you may have regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA approved and/or EPA regulated when and as required by law.
250mg per tablet
500mg per tablet
Store at room temperature, away from moisture and heat.
Use as directed by a veterinarian. Dosage and length of use vary according to the need for treatment and size of animal. Pills are best served with food as this medication contains a strong, bitter taste.
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Rated 4.8 out of 5 by 5
Rated 4 out of 5 by Marianyc Great product best price around
The medication works great and it's way cheaper than what my vet wanted to charge me. Vet wanted 40$ for a give dollar product !!!i have three dogs one prescription shipped immediately with no issues the other two dogs medications were delayed. there was an issue with both dogs being on one prescription I didn't find this out untill I called but customer service was very very helpful and got the issue resolved with my vet immediately and they even overnighted the medication so I received it the next day! Plus they included a toy for the delay. Customer service was very helpful.
November 20, 2013
Rated 5 out of 5 by SweetPea Great product
Easy to order, easy to administer, not to mention a great buy!
September 22, 2013
Rated 5 out of 5 by Necie You have the best prices!!
I get all of my prescriptions at PetCareRx. It is ridiculous how much my vet marks up their medicine. Unless it is an emergency and I need the meds right away, I get a script written and buy it from you. This particular medicine was for my shih Tzu. My golden is 8 and is on soloxine for life. I always get it from you. I save a fortune!
July 28, 2013
Rated 5 out of 5 Great for small dogs
My grandmother gave my toy poodle human food and she was lethargic and had terrible diarrhea for days. I took her to the vet and they gave her this, it made my dog feel so much better. I recommend it to all who can not handle seeing their sick dog in pain.
January 11, 2011
Rated 5 out of 5 Metronidazole
I have used metronidazole to deal with Giardia infections previously. This product is easily administered and a few days of treatment will take care of the infection. *This is a prescription item
March 23, 2005
Metronidazole is a potent antimicrobial antibiotic used to treat various illnesses and conditions in dogs, cats, and horses. Depending on the illness being treated, Metronidazole may be taken orally or applied externally.
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