Nitazenes: the drug more potent than heroin that has already killed a young person in Spain
The substance is a painkiller 40 times stronger than fentanyl (which is itself 50 to 100 times more potent than morphine).
Correio da Manhã

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The substance is a painkiller 40 times stronger than fentanyl (which is itself 50 to 100 times more potent than morphine).

An impurity above the acceptable limit was detected, the National Institute of Pharmacy and Medicines clarifies in an alert published on its website.