Australian vet struck off register after giving horse tranquilliser and other drugs to friends in big weekend binge

An Aussie veterinary surgeon has been struck off the register after admitting she injected two friends with a horse tranquilliser during a boozy, drug-fuelled weekend south of Perth.

Catherine McGuigan has long worked at Murray Veterinary Services in Coolup, but in a recent State Administrative Tribunal (SAT) ruling she was found guilty of unprofessional conduct.

The SAT said McGuigan began socialising with a couple who used her services and “from time to time, [they] took trips away together during which they used illicit drugs, including ecstasy and cocaine for recreational purposes”.

During a weekend in October last year, the trio stayed at an apartment in Wannanup and were drinking and consuming cocaine when McGuigan grabbed a 100ml bottle of ketamine from her car.

She then asked her female friend how much she weighed so she could “check on the internet the correct dose of ketamine to administer”.

McGuigan also gave ketamine to her male friend and for herself.