A stop and search on a car led Preston police to a hoard of drugs.
Officers searched homes after a quantity of drugs was found in a Honda on Friday night.
Preston police tweeted: "A Honda #PharmaCivic stopped by #Team5IR containing a large quantity of prescription drugs.
"House searches revealed thousands more tablets and capsules of steroids, pregabalin, valium, viagra, diazepam and counterfeit tobacco.
"Occupants arrested for supply of controlled drugs,"