Older adults with adrenocortical insufficiency, including Addison's disease (AD), are at an increased risk for developing late-life depression. Treatment of AD with glucocorticoid replacement therapy may exacerbate depressive symptoms and may complicate treatment of late-life depression.

To present a case with algorithm of decision-making in a particular case of glucocorticoid induced depression in patient with syndrome of Addison.

To report a case-study, describing treatment of Addison's disease in LLD.

A case report is presented and discussed, followed by a literature review.

A 77-year-old female, diagnosed with Addison's disease, was referred with persistent fatigue, weakness, weight loss, sleep disturbances, and depressive symptoms over the previous 6 months. She was taken losartan 100 mg/day, zolpidem 10 mg/day, fludrocortisone 100 μg/day, and hydrocortisone 35 mg/day. There was no personal or family history of psychiatric problems. Clinical examination was normal aside from skin hyperpigmentation. After initial minimal dose reduction of glucocorticoids, Addison's disease remained under control. One week later, her depressive symptoms disappeared without administration of antidepressants.

The association between glucocorticoid replacement therapy and late-life depression is not well understood. The current case shows that treatment of glucocorticoid-induced depression in subjects with Addison's disease is achievable by minimal adjustments in glucocorticoid regiment. However, collaboration with endocrinology is of vital importance to prevent an Addison's crisis. Pharmacokinetic dose-finding studies are required to find optimal glucocorticoid adjustment strategy.

The authors have not supplied their declaration of competing interest.