Recommended Dosage Information & Calculations

Recommended Dosage Information & Calculations

Calculating the proper dosage of your dragons medication is essential to it's recovery. Giving the wrong amount of medicine can be less helpful than giving no medication and can mean life or death in some situations. If you are ever in doubt, wait until you know for sure if you're calculations are accurate.   It is also important to understand how to read a syringe properly, so always pay attention to the position of the 0's and decimal points.  Download our Reading a Syringe PDF here

By choosing to medicate your reptiles with or without the direct supervision of a professional, you are solely responsible for calculating and giving the correct dosage.  The information you find on the internet may or may not be 100% accurate, so please be sure to do extra research when looking for dosage information, then double or triple check every number and every calculation.  Make sure any information you find is from a reliable source and is consistent if provided by non professionals.  Medicating your own animals can be risky, but the benefits will usually outweigh the risks when there is nothing left to lose.   All the information provided here is for reference only, please cross check it for consistency before assuming anything.   Download Calculating Dosages PDF here.

All medications are dosed by milligrams per kilogram of body weight, so you must calculate your animals weight in kilograms.

To convert grams to kilograms, multiply the weight in grams x .001 ex:  300 x .001 = .300  (this moves the decimal to the left 3 places)

Now, take your weight in kilograms and multiply x the dosage in milligrams per kilogram for the specific kind of medication being given.  
*Note: every medication has a different recommended dosage and will come in a different strength or concentration.

ex: Toltrazuril dosage is 20 mg/kg so you take .300 x 20 mg/kg = 6 mg 
This is how much medication in milligrams your animal needs as one total dose if it weighs .3 kg, so now you have to figure out how much of the medication contains that amount.

Now you take the strength or concentration of the medication and divide it into the dose in milligrams (mg), be careful NOT to be confused by percentages.  A concentration of 5% contains 50 mg per mL, so the concentration or strength is 50 not 5.  Now take the weight in kg  (.300 x 20 mg/kg = 6)  then divide by (6 ÷ 50 mg/mL = .12 cc/mL)

Formula (((grams x .001) x dose mg) / mg/mL)  (((300g x .001 =.3) x 20 = 6) / 50 = .12)

If you are unsure, please double check your math by using the Excel dosage calculator at

Recommended Dosages for Medications

Toltrazuril - 20 mg/kg PO (orally) repeat in 1 week (0.04cc per 100g)
Panacur -  50-100 mg/kg PO (orally) repeat in 1-2 weeks 1-3x (0.05cc to 0.1cc per 100g)

Sulfadimethoxine - 50 mg/kg PO (orally) q 24h (daily) 3 days, repeat in 3 days
Metronidazole -  20-150 mg/kg PO (orally) repeat in 2 weeks / flagellates 25-50 mg/kg repeat in 3 days
Enrofloxacin -  10 mg/kg (20 mg/kg resistant) q 24h 10 days
Ciprofloxacin - 10mg/kg q 48h 14-28 days
Orbifloxacin - 2.5mg/kg q 24h 5 days (0.008cc per 100g of 30mg/mL strength)

Cefazolin Injectable - 20 mg/kg IM p 72h (every 3 days) 15-30 days
Ceftazidime Injectable - 20 mg/kg SQ/IM p 72h (every 3 days) 15-30 days

Vitamin B Complex - 0.5 mg/kg SQ/IM repeat in 3 weeks
Calcium Gluconate Injectable - 75 mg/kg IM q 6h (300 mg/kg dividied into doses over 24 hours) 
Calcium Glubionate - 1 mL/kg PO (orally) q 24h

Meloxicam - 0.2 - 0.4 mg/kg PO (orally) p 24h (daily) 5 days (do not give when renal disease is present)
Tramadol - 1-2 mg/kg PO (orally) p 24-48h

Itraconazole - 5mg/kg PO q24h
Voriconazole - 10mg/kg PO q24h

Allopurinol - 10mg/kg PO q24h
Lactulose - 10g/15mL solution give 0.5cc per kg


Weight Conversion
1 kg = 1000 gm
1 g = 1000 mg

1 g = 0.001 kg
1 mg = 0.001 g


1000 mg/mL = 100%
  500 mg/mL = 50%
  200 mg/mL = 20%
  100 mg/mL = 10%
    50 mg/mL = 5%
    25 mg/mL = 2.5%
    10mg/mL =   1%
      5mg/mL =  0.5%

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