Acute Effects of the Psychedelic Phenethylamine 25I-NBOMe in C57BL/6J Male Mice.
International journal of molecular sciences March 20, 2025 Sabrine Bilel, Cristina Miliano, Giorgia Corli et al. 3 citations
The synthetic psychedelic 25I-NBOMe, a selective 5HT2A receptor agonist abused as a counterfeit LSD, alters dopamine transmission, behavior, and synaptic plasticity in mice. At the highest dose tested (1 mg/kg), it increased dopamine levels in the nucleus accumbens shell. It also increased reaction time within 30 minutes after administration and disrupted prepulse inhibition, indicating sensorimotor gating deficits. In brain slices, 25I-NBOMe prevented long-term potentiation in the medial prefrontal cortex, an effect not reversed by a selective 5HT2A antagonist. These findings highlight risks of 25I-NBOMe use, including altered neurotransmission and impaired cognitive processes.