It follows two searches in Portadown yesterday.
Three men, aged 22, 28 and 44 years old were arrested. The 22 and 28 year olds have been released on bail pending further enquiries.
The 44 year old man remains in custody.
A police spokesperson said: “Officers want to thank the public for their continued support as they tackle the issue of drugs and.
“Anyone with information or concerns about drugs in your area to ring officers on the 101 number.”