Kastalia Medrano

Kastalia is Filter‘s deputy editor. She previously worked at a number of other media outlets and wouldn’t recommend the drug coverage at any of them. When not at Filter, she works with drug users in NYC and drug checkers in North Carolina to track hyperlocal supply changes, and cohosts a national stimulant users call with Isaac Jackson. She uses meth daily and other drugs sometimes.

If Abstinence Isn’t the Point of Contingency Management, What Is?

There aren't any treatments for stimulant use disorder (SUD) that have strong evidence, but the one that has the most…

April 22, 2024

The Campaign to Call Fentanyl Deaths “Poisoning” Is Working as Intended

A basic concept of toxicology is that “the dose makes the poison.” Any substance becomes poisonous to the human body…

April 16, 2024

CBP Launches Operation Plaza Spike, “Next Phase” in War on Fentanyl

Customs and Border Protection (CBP) has begun the latest iteration of its synthetic drug supply chain crackdown, this time by…

April 11, 2024

FL Isn’t Really Criminalizing Fentanyl “Exposure.” It’s Punishing Possession.

Beginning October 1, Florida will consider it a second-degree felony to expose a first responder to fentanyl, if it results…

April 10, 2024

CDC: Overdose Deaths Leveled Off in 2022, Still Setting New Record

The United States recorded 107,941 drug overdose deaths in 2022, according to final data from the Centers for Disease Control…

March 21, 2024

Oregon Lawmakers Recriminalize Drugs, Under the Guise of Treatment

On March 1, Oregon legislators approved a bill to recriminalize drug possession, undoing the historic Measure 110 enacted by voters…

March 4, 2024

Many Drug Users Aren’t Protected by “Good Samaritan” Laws

Kansas, one of the last two states without a "Good Samaritan" law for drug overdose, is poised to enact one.…

February 27, 2024

Nalmefene Is Not “Just Like Naloxone”

Opvee, an opioid-overdose antidote manufactured by Indivior that was approved in 2023, has in recent weeks been slowly rolling out…

February 23, 2024

You Can Definitely Misuse Naloxone, If You’re a Cop

Cops seem to have decided that ever since fentanyl came into the illicit drug supply, regular-strength Narcan is no longer…

February 13, 2024

WA Advances Fentanyl-Detecting K-9s—and Police Immunity From Damages

Washington State has advanced a bill to train drug-sniffing dogs to detect fentanyl—and limit police liability in civil lawsuits over…

February 5, 2024