Detective Acting Sergeant Elissa Smith, of the Warrnambool-based police divisional tasking unit, said members executed a drug search warrant at a property in Warrnambool's Clifton Street about 7am Thursday.

Officers seized 17 grams of methamphetamine, 15 millilitres of gamma-hydroxybutyric (GHB) and about seven grams of cannabis.

Also seized was $20,000 cash, a quantity of prescription tablets and multiple mobile phones, which are yet be analysed.

Detective Acting Sergeant Smith said a 31-year-old Warrnambool man was arrested, interviewed and charged with trafficking methamphetamine, possessing methamphetamine, GHB and cannabis, and possessing the proceeds of crime - the cash.

A 36-year-old Warrnambool woman was also arrested, interviewed and charged with possessing heroin and methamphetamine.

She was also charged with committing indictable offences while on bail for deception and driving-related offences.

She is expected to appear in Warrnambool Magistrates Court on Friday for a bail hearing.

Detective Acting Sergeant Smith said a 24-year-old Warrnambool woman was also arrested and charged with possession and use of GHB.

She was bailed to appear in court in November.

It comes after an unrelated raid earlier this month netted $25,000 in cash and a smorgasbord of drugs at an east Warrnambool home.

Anyone with information about drugs or associated crime is requested to contact the Warrnambool police station or Crime Stoppers on 1800 333 000.

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