Sertralina is a medication commonly used to treat depression, anxiety disorders, and other mental health conditions. It belongs to a class of drugs known as selective serotonin reuptake inhibitors (SSRIs), which work by increasing the levels of serotonin in the brain, a neurotransmitter that helps regulate mood. Typically prescribed by healthcare professionals, sertralina can help improve symptoms such as sadness, worry, and irritability. It is important for patients to follow their doctor's instructions regarding dosage and to discuss any side effects or concerns during treatment.