Police executed a warrant under the misuse of drugs act at an address in Blackpool on Tuesday, January 31.
Drugs, mobile phones, cash and various equipment were seized during the raid.
A 45-year-old man and a 22-year-old woman were arrested for being concerned in the supply of controlled drugs.
A 17-year-old man was also arrested for being concerned in the supply of controlled drugs and possession of Class B drugs (cannabis).