{"ok":true,"nota":{"id":"3dcf6d858972d17d","slug":"un-sedante-veterinario-ya-aparece-mezclado-con-fentanilo-en-el-sur-de--3dcf6d","titulo":"Un sedante veterinario ya aparece mezclado con fentanilo en el sur de California","resumen":"Un programa comunitario de análisis de drogas recolectó muestras entre 2023 y 2026. Encontraron medetomidina, un sedante potente, en el suministro ilegal de fentanilo de esa región.","fuente":"medrxiv","fuenteNombre":"medRxiv · preprints","color":"#1f7a4d","autor":"Koncsol, A. J., Friedman, J. R., Molina, C. A., Grabill, M., Godvin, M. E., Romero, R., Samuels, E. A., Sisco, E., Shove","url":"https://www.medrxiv.org/content/10.64898/2026.10.13.26365459v1?rss=1","imagen":"/hoy/portada/3dcf6d858972d17d","tema":"salud","subtemas":["fentanilo","medetomidina","sobredosis","drogas ilegales","salud pública"],"entidades":["Sur de California","medRxiv"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-22T00:00:00.000Z","indexTs":"2026-10-22T16:38:44.280Z","hash":"1e5257035018695991e648bf89cbda2911cf19004c3ac81e6e693e526e4a8396","tsa":{"time":"Oct 22 16:39:43 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"La medetomidina se usa en veterinaria y es parecida a la xilazina, que ya preocupa en muchos estados de Estados Unidos. Cuando una sustancia así se mezcla con opioides, aumenta el riesgo de sobredosis y de síntomas de abstinencia difíciles de tratar. El mismo patrón llegó antes a otros mercados, y eso indica que el problema se expande. Para quien consume o convive con alguien que lo hace, la alerta es que las drogas callejeras cambian más rápido de lo que se detecta.","quienFirma":"medRxiv (preprint de investigación en salud pública)","confianza":"preprint","consulta":null},"sello":{"hash":"1e5257035018695991e648bf89cbda2911cf19004c3ac81e6e693e526e4a8396","sello":"b55e6d92d58bef11fa833c295802588ac1e0650682369e1d287ed83c2ce00935","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6575204,"aleatorio":"ac0f4a6ce509202540c9641abb3a70f7f06eeb36f68a34e1bc3e430369a775da","tiempo":"2026-10-22T16:39:00.000Z"},"nist":{"cadena":2,"pulso":1994801,"salida":"123765DCC46130497358D1E6393BF76FC82D205E2F260DEF171C4887B733C1209F31A193DDD877AB50C2E9F79D0A125A26712AD900F817275AC0E40E5C1C39BC","tiempo":"2026-10-22T16:38:00.000Z"},"noAntes":"2026-10-22T16:39:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 22 16:39:43 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Characterizing the Emergence of Medetomidine in Southern California Fentanyl Markets","descripcion":"Background: Medetomidine, a potent sedative, is increasingly present in fentanyl-related hospitalizations and deaths. Multiple states have passed legislation to control xylazine, a pharmacologically similar sedative in the illicit opioid supply. Medetomidine may function as a highly potent substitute for xylazine with significant overdose risk and withdrawal potential. Medetomidine has previously been described mostly in eastern U.S. fentanyl markets. Here, we characterize medetomidine-containing drug samples obtained in Southern California 2023-2026. Methods: Anonymous participants in Southern California voluntarily provided drug products to a community-based drug checking program. All samp","pubDate":"2026-10-22","url":"https://www.medrxiv.org/content/10.64898/2026.10.13.26365459v1?rss=1"},"indexado":"2026-10-22T16:38:44.280Z"}}