iPhone Screenshots


This App enables UK vets to calculate doses of an unlicensed quad anaesthetic combination to carry out early neutering in kittens.

The anaesthetic combination has been used at the RSPCA Greater Manchester Animal Hospital on thousands of kittens for many years.

The user inputs the mass of the kitten (kg). The volume of each of the following agents is given in mls

Sedator (medetomidine 1mg/ml)
Anesketin (ketamine 100mg/ml)
Buprenodale (buprenorphine 300μg/ml)
Hypnovel (midazolam 10mg/2ml)

For example, a 2kg kitten requires 0.1mls of each drug = total volume 0.4mls by intramuscular injection.

Alternatively, if the user selects methadone (Comfortan 10mg/ml) as the preferred opiate, a 2kg kitten requires 0.08mls of each drug = total volume 0.32mls by intramuscular injection.

The dosing regime is based on body surface area calculations.

The decision, and therefore the responsibility, for prescribing any drug for an animal lies solely with the veterinary surgeon.

David Yates MRCVS
5th August 2011

Last updated 31st December 2014

What’s New

Version 1.3

Minor logo branding changes as requested by sponsors.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Faithderh ,


Practical and easy to use!

Victoria1985 ,

So useful!

Such a useful app. Thanks!

Lacewing ,

Kitten quad

A useful tool for vets familiar with alpha 2 combinations.


Elliot Yates
966.7 KB

Requires iOS 7.1 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 12+ for the following:
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
Infrequent/Mild Medical/Treatment Information
© David Yates MRCVS


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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