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Phencyclidine or phenylcyclohexyl piperidine (PCP), also known in its use as a street drug as angel dust among other names, is a dissociative anesthetic mainly used recreationally for its significant mind-altering effects. [1] [4] PCP may cause hallucinations, distorted perceptions of sounds, and violent behavior.
Arylcyclohexylamine anesthetics were intensively investigated at Parke-Davis, beginning with the 1956 studies of PCP and later the related compound ketamine. [2] The 1970s saw the debut of these compounds, especially PCP and its analogues , as illicitly used recreational drugs due to their dissociative hallucinogenic and euphoriant effects.
Vision loss in toxic and nutritional optic neuropathy is bilateral, symmetric, painless, gradual, and progressive. Dyschromatopsia, a change in color vision, is often the first symptom. Some patients notice that certain colors, particularly red, are less bright or vivid; others have a general loss of color perception.
Initial symptoms include restlessness, agitation, malaise, or a fixed stare. Then comes the more characteristically described extreme and sustained upward deviation of the eyes. In addition, the eyes may converge, deviate upward and laterally, or deviate downward.
Symptoms of this disorder include floaters, blurred vision, photopsia (flashing lights in eyes), loss of color vision and nyctalopia. In an eye examination, light-colored spots on the retina are seen. Complete loss of visual acuity may happen [citation needed] The name of the condition comes from the small light-colored fundus spots on the ...
Pentachlorophenol (PCP) is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names. [5] It can be found as pure PCP, or as the sodium salt of PCP, the latter of which dissolves easily in water. It can be biodegraded by some bacteria, including Sphingobium ...
A variety of symptoms characterize BCM: [2] [3] Low visual acuity - ranging between 20/60 and 20/200; Poor ability or inability to distinguish colours; Hemeralopia (and associated photophobia) - sensitivity to bright light; Nystagmus - an involuntary eye movement. BCM symptoms are usually stationary, but some studies show evidence of disease ...
4-Phenyl-4-(1-piperidinyl)cyclohexanol, also known as PPC, is an organic chemical which is a metabolite of phencyclidine (PCP). [1] It can be detected in the hair of PCP users. [2] PPC has been shown to cause increases in locomotor activity in lab mice. [3]