Pembrokeshire police have executed 18 misuse of drug act warrants in two days.
The warrants resulted in cannabis and cocaine being seized and four people being arrested.
Detective Inspector Shane Williams said: "The warrants were part of the regular activity we undertake to disrupt drug dealers and users in Pembrokeshire.
"Drugs cause misery and harm to our communities. They affect not only the users, but their family and friends as well. We take action to not only prevent drug dealings in Pembrokeshire, but to ensure our young people do not become involved in this activity."
Anyone with information about drug dealing should contact police on 0845 330 2000 or Crimestoppers on 0800 555 111.