Hi Thanks for writing to Health care Magic Nexito is an antidepressant. Ur doctor possibly prescribed as u have sleeplessness as a part of depression. Nexito is known to cause weight gain. But donot discontinue the medication as this would cause a relapse of ur previous symptoms. (till ur doctor advises) Try excercising regularly, cutting down high calorie and oily foods in the diet. Also discuss with ur consultant if the dosage of the tablet can be adjusted. Medication for weight loss is usually not preferred. Hope this helps u Thanks and regards