induced psychotic disorder

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shared psychotic disorder

a delusional system that develops in one or more persons as a result of a close relationship with someone who already has a psychotic disorder with prominent delusions. It most commonly involves only two people and then is usually called folie à deux.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·duced psy·chot·ic dis·or·der

a severe mental disorder brought about by a toxic agent such as a drug or hallucinogen. See: psychosis.
Farlex Partner Medical Dictionary © Farlex 2012
A disorder in which 2 closely related people share a delusional system; e.g., a mother who believes a son who is convinced he’s Jesus Christ
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

induced psychotic disorder

See Folie à deux.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.