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Ketamine hydrochloride, or "Special K," is a powerful hallucinogen widely used as an animal tranquilizer by veterinarians. Users sometimes call the high caused by Special K, "K hole," and describe profound hallucinations that include visual distortions and a lost sense of time, sense, and identity. The high can last from a half-hour to 2 hours.
posted by grouse at 3:05 PM on December 12, 2006