A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance that changes functions of the nervous system, and results in alterations in perception, mood, cognition, and behavior.
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Zeta Cephei (stars.astro.illinois.edu)Third magnitude (3.35) Zeta, notably brighter than Delta, lies with Epsilon Cephei in a little triangle at Cepheus’s southeastern corner.