Take this medication by mouth as directed by your doctor. Dosage is based on your medical condition, age, and response to treatment. Your dose may be gradually increased until the drug starts working well. Follow your doctor's instructions closely to reduce the risk of side effects. Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details.