In Summary. Common side effects of Vyvanse include: insomnia and irritability. Other side effects include: dizziness, weight loss, and xerostomia. See below for a comprehensive list of adverse effects. For the Consumer. Applies to lisdexamfetamine: oral capsule.
Examples of involuntary weight loss include the weight loss associated with cancer, malabsorption (such as from chronic diarrheal illnesses), and chronic inflammation (such as with rheumatoid arthritis).eight loss: Weight loss is a decrease in body weight resulting from either voluntary (diet, exercise) or involuntary (illness) circumstances.
Depression and anxiety may also cause you to eat more and exercise less than normal. Metabolic or hormonal disruptions, such as hypothyroidism or polycystic ovary syndrome, can cause sudden weight gain and bloating. Cushing's disease can also cause rapid weight gain, especially in the upper body.