Describe the four main classes of drugs used in the treatment of mental and emot

A good answer will include the following key points.
Antipsychotic medications are prescribed for the treatment of schizophrenia and other psychoses.
Benefits—reduction of agitation, delusions, and hallucinations; shorten schizophrenic episodes
Drawbacks—little relief from other symptoms; may cause side effects like tardive dyskinesia and severe diabetes; unpleasant side effects may result in failure to continue taking medication
Antidepressant medications are prescribed for the treatment of depression, anxiety, phobias, and obsessive-compulsive disorders.
Benefits—relatively effective in relieving depression and anxiety; nonaddictive
Drawbacks—unpleasant physical reactions; interactions with certain foods to produce dangerously high blood pressure (MAOIs)
Tranquilizers are prescribed to treat mild anxiety.
Benefits—reduce anxiety; also help people with panic disorder and acute anxiety attacks in the short term
Drawbacks—overprescribed; symptoms often return when medication is stopped; problems with tolerance, addiction, and withdrawal may develop
Lithium carbonate is prescribed for the treatment of bipolar disorder.
Benefits—successful in many cases
Drawback—can be highly toxic if dosage is too high; produces short-term side effects and long-term problems such as kidney failure