The longest, strangest trip: Some psychedelic drug users are stuck with unwelcome highs

[Zorro]

A.J. took two small hits off a cannabis vape pen, a common ritual with his morning coffee. Moments after exhaling, a transfigured, kaleidoscopic version of the world emerged before his eyes.

“Some colors are seeping into the other colors,” the 30-year-old said, gesturing across his art-filled living room in Yorba Linda. “In that Persian tapestry on the wall, the flowers are flowing like the wind, back and forth, and the centerpieces of the horses and other animals, they’re stagnant still but I can feel them kind of moving, almost like a gallop.”

A.J. — who requested anonymity to discuss his drug use and medical history — was on no other mind-altering substances beyond the caffeine in his mug. The fantastical visions, which he’s come to expect and in some ways even enjoy, were a lingering effect of past drug use. They’re a manifestation of a rare condition called hallucinogen persisting perception disorder, or HPPD, which has puzzled psychiatrists and researchers and raised alarms as psychedelic drugs have become more mainstream for both therapeutic and recreational use.

LSD and other hallucinogens have long been said to cause flashbacks for some heavy users, but HPPD is a unique phenomenon. It’s a lasting condition defined by a range of symptoms straight out of the “Electric Kool-Aid Acid Test.”

https://www.latimes.com/california/story/2024-04-30/psychedelic-drug-highs-hallucinogen-persisting-perception-disorder-hppd

[Cartoonist]

1. I'm a victim of this.

On a date with a girl, we shared a joint. She experienced a flashback. She then accused me of dosing her.
So there I am, completely unable to defend myself. Her word against mine. Of course, no one would believe me. I wouldn't believe the male in this scenario if it was someone else. It traumatizes me to this day.

[Martin68]

2. I've only had a full-blown LSD flashback once. It happened after a smoke of pot a week after an intense acid trip.

Very disconcerting to be totally tripping out when you're not prepared for it, but it only lated for an hour our so and never happened again.