Which class of medications includes selective serotonin reuptake inhibitors (SSRIs)?

Selective serotonin reuptake inhibitors (SSRIs) are primarily classified as anti-depressants. This class of medications works by increasing the levels of serotonin, a neurotransmitter associated with mood regulation, in the brain. By inhibiting the reuptake of serotonin, these medications help elevate mood and alleviate symptoms of depression. SSRIs are commonly prescribed for various mental health conditions beyond depression, including anxiety disorders and obsessive-compulsive disorder (OCD), which further emphasizes their role in treating psychological conditions.

In contrast, the other options represent different categories of medications with distinct functions. Antibiotics are used to treat bacterial infections, stimulants typically increase alertness and attention (commonly used for conditions like ADHD), and antipsychotics are used to manage symptoms of psychosis and other severe mental health disorders. These differences highlight the unique nature of SSRIs and solidify their classification as anti-depressants.