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Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, [1] including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.
HPPD is an enzyme that usually bonds to form tetramers in bacteria and dimers in eukaryotes and has a subunit mass of 40-50 kDa. [7] [8] [9] Dividing the enzyme into the N-terminus and C-terminus one will notice that the N-terminus varies in composition while the C-terminus remains relatively constant [10] (the C-terminus in plants does differ slightly from the C-terminus in other beings).
4-Hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors (HPPD inhibitors) are a class of herbicides that prevent growth in plants by blocking 4-Hydroxyphenylpyruvate dioxygenase, an enzyme in plants that breaks down the amino acid tyrosine into molecules that are then used by plants to create other molecules that plants need.
Deudextromethorphan/quinidine (d-DXM/Q; developmental code names AVP-786, CTP-786) is a combination of deudextromethorphan (d-DXM; deuterated (d6) dextromethorphan (DXM)) and quinidine (Q) which is under development by Avanir Pharmaceuticals for the treatment of a variety of neurological and psychiatric indications.
Dextromethorphan, or DXM, a common active ingredient found in many over-the-counter cough suppressant cold medicines, is used as a recreational drug and entheogen for its dissociative effects. [1] Street names include Brownies , Dextro , Drix , Gel , Groove , Lean , Mega-perls , Poor man's ecstasy , Poor man's PCP, Red devils , Robo , Rojo ...
HPPD may refer to: Hallucinogen persisting perception disorder, a perception disorder that can be caused by hallucinogenic drug use; 4-hydroxyphenylpyruvate dioxygenase, an enzyme found in almost all aerobic life forms and the primary target of some herbicides; One of those HPPD inhibitor herbicides, a 4-hydroxyphenylpyruvate dioxygenase inhibitor
It involves and typically occurs following an overdose or several day binge on psychostimulants, [1] although it can occur in the course of stimulant therapy, particularly at higher doses. [2] One study reported occurrences at regularly prescribed doses in approximately 0.1% of individuals within the first several weeks after starting ...
Dextrorphan (DXO) is a psychoactive drug of the morphinan class which acts as an antitussive or cough suppressant and in high doses a dissociative hallucinogen.It is the dextrorotatory enantiomer of racemorphan; the levorotatory enantiomer is levorphanol.