Three people have been arrested after drugs were found in the southern suburbs.

It will be alleged that about 8.15am today (Tuesday 18 July), Flinders Medical Centre staff found an amount of liquid suspected to be fantasy in the possession of a 30-year-old woman.

Police attended and seized the liquid.

Further investigations led them to a house on Dyson Road in Port Noarlunga where more than two litres of fantasy was found, along with 21 cannabis plants, drug paraphernalia and prescription medication.

A 42-year-old Port Noarlunga man and a 54-year-old man of no fixed address were arrested and charged with numerous drug offences including trafficking a controlled drug. They were refused bail to appear in the Christies Beach Magistrates Court tomorrow.

A 19-year-old woman at the property was also arrested for hinder police and bailed to appear in court at a later date.