The clinic for psychedelic difficulties: where people go when the trip never really endsPsychedelics can lead to long-lasting visual and psychological effects like HPPD, requiring better understanding and support.
The longest, strangest trip: Some psychedelic drug users are stuck with unwelcome highsHallucinogen Persisting Perception Disorder (HPPD) can be triggered by various psychedelic drugs and even cannabis, leading to lasting visual aberrations.