Some research has studied the use of corticosteroids (such as
hydrocortisone and fludrocortisone) to treat
chronic fatigue syndrome (CFS). Interest in using
corticosteroids to treat CFS is based on the fact that people with CFS often
have low levels of the steroid hormone cortisol (hydrocortisone) in their
bodies. Cortisol normally is secreted by the
adrenal glands.
Studies have shown that taking low doses of oral hydrocortisone may
relieve some symptoms of CFS, but the benefit appears to be fairly
small.1 Also, the effects have been studied only over
a short period of time and have not been studied in combination with treatments
for other symptoms. Fludrocortisone has been used to treat blood pressure
problems (orthostatic hypotension) in some people, but studies
suggest that it offers no real benefit when used alone.2
Unless corticosteroids can be shown to have a greater benefit for
people with CFS over a longer period of time, the side effects associated with
long-term corticosteroid therapy outweigh their use in most cases of CFS. Other
medicines for the treatment of orthostatic hypotension are being
studied.