The Phenothiazine reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Phenothiazine

Phenothiazines are antipsychotic drugs. There are three groups different by their chemical structure and their pharmacological effects:

Group	Sedative	Extrapyramidal	Autonomic
Aliphatic compounds	strong	moderate	moderate
Piperidines	moderate	weak	strong
Piperazines	weak	strong	weak

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