Health officials have issued a warning about counterfeit hydromorphone tablets circulating in the Kamloops, B.C., area that pose a high risk of overdose. The counterfeits contain unknown quantities of a fentanyl analog called N-propionyl para-fluoronorfentanyl, Interior Health said in a public alert Thursday. “It does not contain hydromorphone,” the health authority warned. “Be aware of risk of fakes, if not purchasing from a pharmacy.” Officials also released images of the counterfeit tablets, and urged anyone with similar-looking drugs to get them tested before using them. The drugs are sometimes being sold as Dilaudid, a brand name for hydromorphone, and its street name “dillies,” Interior Health said.