Rob 16 posted this a couple of years ago I think, well worth a read
I am cross-posting this article from the National Adrenal Diseases Foundation (
www.nadf.us/adrenal-diseases/secondary-adrenal-insufficiency/
) because I think it deserves its own thread.
It gives an excellent explanation of how steroids suppress ACTH, causing the adrenal glands to atrophy, and how symptoms of adrenal insufficiency will result as prednisone is tapered below 5 mg.
It is worth reading all of it, but I have excerpted the most relevant parts.
Some interesting points:
If you take steroids for a significant amount of time you WILL develop adrenal insufficiency.
Adrenal Insufficiency can become permanent {I have not been able to confirm this, though!}
Tapering below 5 mg prednisone must be done VERY slowly, depending on how long you have been treated.
The symptoms of this tapering are the result of adrenal insufficiency.
Some degree of adrenal insufficiency is necessary to restart your adrenal glands.
Additional steroids may be necessary in case of illness or trauma.
Every adrenal insufficiency patient should wear an identification bracelet or necklace.
www.nadf.us/adrenal-diseases/secondary-adrenal-insufficiency/
Secondary Adrenal Insufficiency
What Causes Secondary Adrenal Insufficiency
The most common cause of suppression of ACTH is the use of glucocorticoid medications [which] are steroid hormones that act like cortisol. They include cortisone, hydrocortisone, prednisone, prednisolone, dexamethasone {...} When the cells in the pituitary recognize any of these drugs, they sense that there is cortisol present and therefore produce less ACTH. This ACTH suppression {...} can be very temporary, prolonged, or permanent depending on the dose, potency and length of use of the medication. For example, a few days of prednisone will not produce a significant problem, but several weeks of prednisone at a dose of 10 mg will diminish the cortisol level and the ability to fight a stressful situation. Recovery of the pituitary-adrenal response after use of a suppressive dose for more than one month will take about one month. Generally, this one for one recovery time is typical up to about 9 to 12 months, when recovery will often take up to a year or may not occur at all.
What are the Symptoms of Secondary Adrenal Insufficiency
The symptoms are related to the degree of cortisol deficiency, the underlying health of the individual, and the rate of reduction in cortisol level. The most common symptoms are severe fatigue, loss of appetite, weight loss, nausea, vomiting, diarrhea, muscle weakness, irritability, and depression. {...}
If secondary adrenal insufficiency is anticipated, {...} appropriate treatment may prevent any symptoms. However, if it is not expected, there are likely to be progressive chronic symptoms that may be missed or ignored until a sudden event like a flu virus, an accident, or the need for surgery suddenly precipitates a dramatic change for the worse. This is an adrenal crisis and is a medical emergency.
How is Secondary Adrenal Insufficiency Treated
{...}The management of those who have developed secondary adrenal insufficiency from prolonged use of steroid therapy presents a challenge. Once glucocorticoids have been tapered to below 5 mg of prednisone, dosing for stress such as illness or surgery is still needed until there is full recovery of adrenal reserve, typically using a guide of one month for each month that steroids had been used. The most difficult issue is that symptoms of adrenal insufficiency will be present during the tapering phase, because low levels of cortisol are the only trigger to the pituitary to stimulate the return of ACTH production and the restoration of normal pituitary-adrenal responsiveness. The longer high dose steroids were given {...}, the more likely that individual will suffer from adrenal insufficiency symptoms on withdrawal of the steroids. In addition, tapering off the steroids may cause a relapse of the disease that had been treated, causing a combination of disease symptoms overlapping with adrenal insufficiency symptoms. That is why it is very common for steroid tapers to be aborted, with a temporary return to therapeutic doses of glucocorticoids, followed by a slow attempt at tapering if the primary disease is in remission.
Why Should Secondary Adrenal Insufficiency Patients Consult an Endocrinologist
{...} Most cases of permanent secondary adrenal insufficiency should be managed by an endocrinologist. In cases of steroid withdrawal for the treatment of medical conditions, endocrinologists often work with the primary physician or specialist in that disease to assess the recovery of pituitary-adrenal reserve and provide guidance about whether long term glucocorticoid therapy is needed. because I think it deserves its own thread.
It gives an excellent explanation of how steroids suppress ACTH, causing the adrenal glands to atrophy, and how symptoms of adrenal insufficiency will result as prednisone is tapered below 5 mg.