Mood stabilizers are medications primarily used to treat mood disorders, such as bipolar disorder and depression. They help balance mood swings, reducing the intensity of highs (mania) and lows (depression). Common mood stabilizers include lithium, valproate, and lamotrigine. These medications work by affecting neurotransmitters in the brain, which are chemicals that transmit signals between nerve cells. While mood stabilizers can be effective, they may also have side effects, such as weight gain or gastrointestinal issues. Regular monitoring by a healthcare professional is essential to ensure safety and effectiveness during treatment.