In total, 22,224 people were receiving methadone treatment for drug misuse in Scotland, 1,093 of which were in the care of the Scottish Prison Service (SPS). The latest published estimated figures, which exclude the SPS, indicate that in 2004 there were 19,227 people receiving prescriptions for methadone in Scotland. This represents an increase of 1,904 people since 2004 (excluding SPS). However it should be noted that the data did not necessarily cover the same time period.