Olanzapine (
Zyprexa) is one of the
atypical antipsychotic medications. Although olanzapine is marketed as an anti-
Parkinson's medication, the
anti-psychiatry website Prozac Spotlight argues that a
1999 study demonstrated that the drug was ineffective.
Common side effects include
muscle-rigidity, muscle-stiffness, muscle-twitches, restlesness,
sedation, and
weight-gain. Olanzapine is not reported to cause
tardive dyskinesia[?].