The men were initially detained following an operation in April 2020, when police recovered a large amount of Class A Drugs along with several thousands of pounds in cash.
Following an investigation by CID, both men have appeared in court, where they have been convicted and jailed.
Kai Weerdmeester, 21, from Doncaster, was convicted of possession with intent to supply Class A drugs – heroin and crack cocaine - and possession of criminal property. He was sentenced to three years.
Dan Prendergast, 20, from Doncaster, was convicted of possession with intent to supply Class A drugs – heroin and crack cocaine. He was sentenced to 18 months.
PC Georgie Abram, from Lancaster and Morecambe Task Force, said: "The selling of crack cocaine and heroin on our streets has a significant detrimental impact on our communities.
