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Emergency Drug Calculator

Pick species, enter weight, adjust any dose. Total dose and draw-up volume update instantly.

Patient

Species, units and body weight

Every dose on the board is worked out from these three. Switching species reloads that species’ default doses.

Species
Units

Body weight is entered in this unit; the field is converted when you switch.

Kilograms or pounds, set by the Units control in this section.
Drug board

Find the drug, read the draw-up volume

Eight emergency groups, 31 drugs. Total dose and draw-up volume recalculate as you type.

Weight used 20.0 kg

Check every value before you draw up. Doses are common starting points (RECOVER CPR guidelines and standard small-animal emergency dosing) and concentrations are typical products — both vary by brand, country and patient. Confirm against your own formulary and the vial in your hand. Cat doses differ from dogs; some drugs are dog-only. Not a substitute for clinical judgement.

Professional use only. This tool supports, and never replaces, the clinical judgement of a registered veterinarian. Always verify a number against the current label, formulary and your patient before you act on it.

How this tool works

How volume is worked out.

Total dose = dose (per kg) × body weight in kg. Volume (mL) = total dose ÷ concentration. Drugs dosed directly in mL/kg (e.g. dextrose, calcium) skip the concentration step — volume = mL/kg × kg. Editing a dose or concentration recalculates that row live. Switching species reloads that species' default doses.

Emergency drug reference for veterinary professionals · ASK A VET™ — Talk. Track. Trust.

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Dr Duncan Houston
About the author

Dr Duncan Houston · BVSc, Veterinarian

Emergency careGeneral practiceMobile vet careFounder, ASK A VET™

Dr Duncan Houston is an Australian veterinarian with experience in emergency, general-practice and mobile veterinary care. He is the founder of ASK A VET™. This guide is educational and is not a substitute for hands-on veterinary care.