For example antidepressants of the class monoamine oxidase inhibitors work by preventing the enzymatic degradation of monoamine neurotransmitters while at the same time inhibiting the main functions of monoamine oxidase. These actions often results in increased neurotransmission since the increase the concentration of neurotransmitters in the brain.
Generally antidepressants such as SSRIs work by inhibiting and preventing the reuptake of serotonin and this eventually leads to increased activity of serotonin in the main brain synapses. On the other hand TCAs and MAOIs have a number of properties that help boost the levels of serotonine in the body. There are also many other common antidepressants which achieve their therapeutic actions by reducing the reuptake of norepinephrine as well as influencing the activity of various nerve cell receptors.
The therapeutic application of SSRIs and the other antidepressants or antipsychotic drugs often come with both their benefits as well as a number of risks associated with them. Some of the benefits of these drugs include the fact that they are significantly effective in the treatment of anxiety disorders, depression and many personality disorders. The drugs are also popular for their low toxicity particularly when they are properly used. On the other hand some of the limitations and risks of using antidepressant drugs such as SSRIs include low efficacy as well as a number of adverse effects on some patients such as agitation, reduced sex drive, erectile dysfunction, headaches, nausea and increased cases of suicidal thoughts (Barlow and Durand, 37).
With regard to the potential risks of using antidepressant and antipsychotic drugs, psychologists should always use a sound rationale in the prescription of these mental health medications. In this regard, these drugs should only be prescribed when necessary under the supervision of a medical practitioner.