What is the term for a condition where a patient continues to experience symptoms similar to intoxication after being clean from hallucinogens for a year?

Hallucinogen Persisting Perception Disorder (HPPD) is the correct term for the condition where a patient continues to experience symptoms resembling intoxication after a prolonged period of being clean from hallucinogens, such as LSD or psilocybin. This disorder can manifest as persistent visual disturbances, such as seeing halos or trails, which can lead to significant distress or impairment in daily functioning.

HPPD is distinct because it highlights the lingering effects of hallucinogen use even after the substance has been cleared from the body. This condition underscores the unique ways that hallucinogens can alter neurochemistry and perception long after their initial effects have worn off. In contrast, Substance Use Disorder pertains to a more generalized condition affecting various substances, and specifically includes patterns of compulsive use and dependence, rather than the specific persistence of perceptual symptoms. Alcohol Use Disorder is limited to issues related to alcohol, and Post-Acute Withdrawal Syndrome is a set of symptoms generally related to the withdrawal phase after cessation of substance use, not a chronic perception disorder.