Certain medicines are known to cause facial tics.
Prozac is a well known example, and this is related to its effect on the neurotranmistters in the brain.
Since some of your drugs are affecting the neurotransmitters too, it is possible that this a drug related side-effect.
Treatment for facial tics needs to involve the use of behavioural therapy, drugs like Clonidine, anti-parkinson's medication, and botox injection maybe tried too.
Stress increases tics, hence relaxation techniques & biofeedback may help too.
You need to discuss the treatment options with your doctor, since in many cases of temporary tics, the treatment is worse than the disease, as the drugs used can cause more side-effects.
It maybe preferable to try and wait for some time before attempting to treat this condition, in case it is not actively interfering with your life,
Here is some information about Proxac and facial ticshttp://serendip.brynmawr.edu/exchange/node/1835
For a simple overview check this linkhttp://www.fairview.org/healthlibrary/content/bha_facetics_bha.htm