How to calculate dose of drugs to the animals if human dose is known.?
This is done using a concept called allometric scaling.
Article A simple practice guide for dose conversion between animals and human
While allometric scaling is very useful, we do need to note that allometric scaling is done mainly via dosing by weight and may not account for the species differences in metabolism and clearance
Dear Shivsharan B. Dhadde,
FDA guidance should be helpful, see page 7 of the document:
Guidance for Industry Estimating the Maximum Safe Starting Dose in Initial Clinical Trials for Therapeutics in Adult Healthy Volunteers
https://www.fda.gov/media/72309/download
Best regards
Tomasz
This is quite difficult. The anatomy of digestive tract of animals differ as in ruminants, fish medicine is altogether different and the metabolism of the young animals differ from adult ones. I can think of only worm treatment where weight to weight basis dose could be adopted since in this instance the drug acts on the worms.
The dosage is the amount of medication based on units per weight of the animal (50 mg/kg, 10 mL/kg) The concentration of the drug is calculated by the manufacturer (mg/mL, mg/tablet) .
Please see https://www.producer.com/2002/03/calculating-drug-doses-animal-health/
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