If used chronically at the recommended dose, dexamethasone could cause severe and serious adverse events such as adrenal suppression (a disorder in which the adrenal glands do not produce enough hormones), central nervous system and psychiatric/behavioral effects, weight gain, gastrointestinal effects, elevated blood glucose, increased infection risks, neuromuscular and skeletal side effects, ocular effects, cardiovascular effects, dermatologic effects endocrine and metabolic issues, among other adverse events not mentioned.