psychiatric disorders
Antipsychotic Drugs
Introduction
Antipsychotic drugs are divided into conventional antipsychotics and 2nd-generation antipsychotics (SGAs) based on their specific neurotransmitter receptor affinity and activity. SGAs may offer some advantages, both in terms of modestly greater efficacy (although recent evidence casts doubt on SGAs' advantage as a class) and reduced likelihood of an involuntary movement disorder and related Adverse effects of antipsychotic drugs . Recent results suggest that new antipsychotic drugs with novel actions—namely, trace amines and muscarinic agonists—may become available. Currently, SGAs comprise about 95% of antipsychotics prescribed in the US. However, risk of Metabolic Syndrome (excess abdominal fat, 