A Duluth man was arrested last week with 29 grams of the deadly opioid fentanyl, 37 grams of heroin and 11 grams of cocaine, police said, and on Tuesday he was charged with three felonies for their alleged sale.

Thomas Nathan Billington, 30, is charged with first-degree sale of heroin, second-degree sale of fentanyl and second-degree sale of cocaine. He was released Tuesday from the St. Louis County Jail on pretrial supervision in lieu of $75,000 bail.

Lake Superior Drug and Violent Crime Task Force officers arrested Billington on Friday on the 100 block of North 18th Avenue East and found 6 grams of fentanyl “packaged for sale,” the Duluth Police Department said in a news release.  The other drugs, along with packaging and paraphernalia, were found after searching his residence on the 2100 block of West Third Street, police said.

The Drug Enforcement Agency says that just a 2 milligram dose - a few grains - of fentanyl can be fatal in most people.

Police said Billington “could not tell the difference between heroin and fentanyl. … This is a reminder that dealers do not have quality control and may not even know what they are selling.”

Those facing a problem with opioids or know someone who does are encouraged to call the opioid hotline at 218-730-4009.