Buy Meridia Online from Actionpill.com . You can easily buy this product in our website . Meridia was withdrawn from the U.S. market in October 2010. Meridia affects chemicals in the brain that affect weight maintenance. Meridia is used together with diet and exercise to treat obesity that may be related to diabetes, high cholesterol, or high blood pressure. Meridia may also be used for other purposes not listed in this medication guide. MERIDIA (Meridia monohydrate) is indicated for the management of obesity, including weight loss and maintenance of weight loss, and should be used in conjunction with a reduced calorie diet.