Two young men in Fredericia, Denmark, aged 24 and 26, have died after ingesting “stamps” laced with a potent synthetic opioid called nitazene. These deaths are among the first in Denmark linked to nitazenes, which are far more dangerous than other opioids.

The substance is so strong that even small amounts pose an imminent risk of poisoning and, in the worst case, death. Authorities are warning against the substance, emphasizing its extreme danger and potentially fatal effects even in tiny doses. Police Inspector Jacob Ulvedal stated that authorities are aware of these potent opioids and tragically witnessed their effects in Fredericia.

The men ingested tiny “stamps” with narcotic content, placed in the oral cavity to achieve a high. Forensic analysis revealed the stamps were soaked in highly potent nitazenes.

The deaths, which occurred in early April, have prompted researchers and the government to focus on nitazenes. Minister for the Interior and Health Sophie Løhde is adding 11 synthetic opioids, mainly nitazenes, to the list of prohibited euphoric substances.

Authorities fear nitazenes will become an increasing problem in Denmark. Center Director Majbritt Grundvad from Fredericia Substance Abuse Center called the deaths “incredibly tragic,” and stated that “The most dangerous thing about these substances is that even users may be in doubt about what it actually is they are getting.”

The police are working to combat drug crime through preventive efforts and investigations.

Minister of Justice Peter Hummelgaard emphasized the importance of tightening penalties for selling drugs, particularly opioids.