Carla K Johnson

AP Medical Writer
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Dr. Allison Justice: I've Never Encountered a Plant This Special
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Dr. Allison Justice: I've Never Encountered a Plant This Special
April 9, 2026
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Kentucky to End Conditional Pardons for Medical Cannabis Users
June 12, 2026
The RollCraft MRB fills up to 10,000 pre-rolls per day with one operator and no pre-weighing.
RollCraft Promises Full Pre-Roll Automation for Less Than $30K
June 12, 2026
Disposable flavored electronic cigarette devices are displayed for sale at a store in Pinecrest, Fla., June 26, 2023.
Fruity Vapes Not Significantly Better Than Tobacco Ones
June 12, 2026
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More from Carla K Johnson
Dr. Allison Justice: I've Never Encountered a Plant This Special
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Addressing the challenges growers face every day—and the ongoing myths about the cannabis plant.
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What Is the Recreational Drug 'Pink Cocaine'?
The danger is tied to not knowing what's in it.
October 23, 2024
A marijuana plant is seen at a medical marijuana dispensary in Egg Harbor Township, N.J., March 22, 2019.
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Report: U.S. Health Authorities Need to Play Larger Role in Cannabis Policy
The approach is a big departure from "Just Say No."
September 26, 2024
Marijuana plants are displayed at a shop in San Francisco, Monday, March 20, 2023.
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Daily Cannabis Use Outpaces Daily Drinking in U.S.
The pattern is closer to tobacco use than typical alcohol use.
May 22, 2024
In this photo made with a long exposure, a man is silhouetted against lights reflected in the waters off Cape Neddick in Maine on Dec. 11, 2017. A study published Thursday, Sept. 14, 2023, in the journal Nature Medicine has found that the psychedelic drug MDMA, combined with talk therapy, can reduce symptoms of post-traumatic stress disorder.
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MDMA Eases PTSD Symptoms in a Study that Paves the Way for Possible U.S. Approval
After treatment, 86% of the MDMA group improved on a standard PTSD assessment.
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U.S. Backs Study of Safe Injection Sites, Overdose Prevention
The grant provides more than $5 million over four years to New York University and Brown University.
May 8, 2023
Mary Beth Orr holds medicine bottles used to give her doses of psilocybin, the compound in psychedelic mushrooms, as part of a study to try and help heavy drinkers cut back or quit entirely.
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'Magic Mushroom' Psychedelic May Help Heavy Drinkers Quit
Psilocybin can cause hours of vivid hallucinations.
August 25, 2022
A man wearing a cannabis costume hands out marijuana cigarettes in New York during a 'Joints for Jabs' event, April 20, 2021.
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Marijuana Joins Vaccine Drive
Several dispensaries around the country are giving out joints or treats to those who've gotten the shot.
April 29, 2021