Once asleep again, the muscles relax and the airway becomes blocked, cutting off the airway again. This cycle can occur hundreds of times per night. Obstructive Sleep Apnea is the most common form of sleep apnea. It ranges in severity from mild to moderate, to severe. Other forms of sleep apnea include Central and Mixed Sleep Apnea.
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In its pure form, PCP is a white crystalline powder that readily dissolves in water or alcohol and has a distinctive bitter chemical taste. On the illicit drug market, this substance contains a number of contaminants causing the color to range from a light to darker brown with a powdery to a gummy mass consistency.epending on how PCP is used, it can have stimulant, depressant, or hallucinogenic actions. In monkeys PCP is about 10 times stronger than ketamine. Its sedative and anesthetic effects are trance-like, and patients experience a feeling of being âout of bodyâ and detached from their environment.