With regard to the question about tardive dyskinesa and ssri's,the
likelihood is extremely low. I am not aware of any case reports of such an
association, but the pdr does have "dyskenisia' as a possible side effect.
ssris have been out worldwide for over twenty years, if there was any
significant incidence of td, we would know it by now. the causal mechanism
of td is thought to be the relative lack of dopamine at certain nerve
endings;ssris generally have minimal,if any effect , on dopaminergic nerves
and tend to produce the opposite effect, ie., a relative excess of dopamine.
The friend who took the thorazine probably has no significant risk for
td since it was such a low dose