More serious side effects: trouble with muscle control, muscle spasms or cramps in the head and neck, fidgeting or pacing, tremors and shuffling of the feet (much like those affecting people with Parkinson's disease).
Side effects due to prolonged use of traditional antipsychotic medications: facial ticks, thrusting and rolling of the tongue, lip licking, panting and grimacing.
There are many newer antipsychotic medications available since the 1990's, including Seroquel, Risperdal, Zyprexa and Clozaril. Some of these medications may work on both the serotonin and dopamine receptors, thereby treating both the "positive" and "negative" symptoms of schizophrenia. Other newer antipsychotics are referred to as atypical antipsychotics, because of how they affect the dopamine receptors in the brain. These newer medications may be more effective in treating a broader range of symptoms of schizophrenia, and some have fewer side effects than traditional antipsychotics. Learn more about the atypical antipsychotics used to help treat schizophrenia.