Around 140,000 prescription pills have been seized in Co Antrim.
PSNI officers conducted a planned search of a property in Ballymena in conjunction with the Medicines Regulatory Group on Tuesday.
The large quantity of tablets were recovered along with various assorted unlicensed medicines.
A police spokesperson said the operatiion followed reports of several postal intercepts at the address and demonstrates the PSNI’s commitment to keeping local communities safe from criminality and removing illegal substances from the streets.
“Enquiries are ongoing and anyone with concerns or information about the supply of drugs in their area is asked to contact police on 101,” they added.
“Alternatively, information can also be provided to the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime.”