Idexis Adrenal Burnout Capsules is a dietary supplement that is marketed to support adrenal health and help manage symptoms related to adrenal fatigue or burnout. Adrenal burnout, also known as adrenal fatigue, is a term used to describe a collection of nonspecific symptoms such as fatigue, body aches, nervousness, and sleep disturbances that are believed to result from chronic stress and overworking of the adrenal glands.