Follow Business Insider: James Kennedy. The idea that there is a difference between natural chemicals â like those in fruits and vegetables â and the synthetic version of those chemicals produced in a laboratory is a common misconception. Marketers often feed off consumer's concerns that man-made chemicals are bad.ollow Business Insider: James Kennedy. The idea that there is a difference between natural chemicals â like those in fruits and vegetables â and the synthetic version of those chemicals produced in a laboratory is a common misconception. Marketers often feed off consumer's concerns that man-made chemicals are bad.
In this article. There are several different types of drugs available to treat mental illnesses. Some of the most commonly used are antidepressants, anti-anxiety, anti-psychotic, mood stabilizing, and stimulant medications.
It is believed that these brain chemicals can help regulate brain circuits that affect emotions. Major types of antidepressants include: 1  Tricyclic antidepressants (TCAs) are some of the first antidepressants used to treat depression. Although these drugs are effective in treating depression, they have more side effects, so they usually aren't the first drugs used. 2  Monoamine oxidase inhibitors (MAOIs) are another early form of antidepressant. 3  These drugs are most effective in people with depression who do not respond to other treatments.