Size:*
Recommended dosage: There is great debate on the subject of how much Flagyl to dose. I would highly recommend starting out on a low dose and working towards a higher dose as needed. Below are some of the dosages I have found through research. It is ultimately your decision on how much to dose. We are not to be held liable for any side effects or adverse reactions. Use this as a guide and do your own research to figure out what is best for your reptile.
Dose Chart for Reptiles: Weigh your reptile in grams and use the chart below to figure out how much to give.
Low Dose (25mg/kg)
Weight (in grams) / Dose (cc or ml)
50 grams / .06cc
100 / .12cc
150 / .18cc
200 / .24cc
250 / .31cc
300 / .38cc
400 / .5cc
500 / .63cc
High Dose (50mg/kg)
Weight (in grams) / Dose (cc or ml)
50 grams / .12cc
100 / .24cc
150 / .38cc
200 / .5cc
250 / .63cc
300 / .75cc
400 / 1.0cc
500 / 1.25cc
If you are needing to dose a cat or dog or other type of non-reptile, you'll need to research the proper dose.
Protozoans: 100 mg/kg, orally, give once then repeat in 2 and 4 weeks.
Anaerobes: 50 mg/kg, orally, every 24 hours for 5 - 7 days. OR 150 mg/kg, orally, once a week, as needed.
Amoebiasis: 25 - 125 mg/kg, orally, once every 2 weeks, as needed. OR 40 - 125 mg/kg, orally, every 72 hours for 5 - 7 doses.
Flagellates: 25 - 50 mg/kg, orally, repeat every 3 - 4 days, as needed (reference: Merck Veterinary Manual). OR 150 mg/kg, orally, once every 2 weeks, as needed.
Trichomoniasis: 50 mg/kg, orally, every 2 weeks, as needed.
Entamoeba Invadens: 20 mg/kg, orally, every 48 hours, as needed (reference: Merck Veterinary Manual).
How many reptiles will one bottle treat? A 1 oz bottle of liquid Flagyl will treat a 500 gram beardie 47 times at the low dose of 25 mg/kg. Higher doses will yield less treatments per bottle.
Storage: Keep refrigerated. The medication will expire in about 9 months after receiving.
Warning: Consult a vet if symptoms do not subside within a few days after giving Flagyl. Do not use in conjunction with any other antibiotic or prescription medication unless otherwise directed by your vet.