Sertraline is a medication commonly prescribed to treat various mental health conditions, including depression, anxiety, and obsessive-compulsive disorder (OCD). 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 taken as a daily oral tablet, sertraline may take several weeks to show its full effects. Common side effects can include nausea, insomnia, and changes in appetite. It is important for patients to consult their healthcare provider for guidance on dosage and potential interactions with other medications.