<unk>  is an atypical antidepressant that has different effects on multiple neurochemicals and receptors including serotonin, glutamate, NMDA, and opioid
Full μ-opiod receptor agonism can lead to effects similar to opioid toxicity and overdose
From 2014-2017 the USA saw a large increase in reported cases of<unk>  thought to be due to the discovery of its opioid effects and its ability to induce euophoria; it can be purchased online as a dietary supplement or research chemical
Not FDA approved in the USA, still used in other countries as a treatment for depression
Tianeptine toxicity
Absinthe
Carbamate toxicity
Barbiturates
Valproic acid toxicity
Benzodiazepines
Mescaline toxicity
Flunitrazepam 