Cortisone side effects
by Nathan Wei, MD, FACP, FACR
Nathan Wei is a nationally known board-certified rheumatologist and author of the Second Opinion Arthritis Treatment Kit. It's available exclusively at this website... not available in stores.
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Cortisone, manufactured naturally by the body's adrenal glands and also made synthetically, has been found to have a marked anti-inflammatory effect. Cortisone and its derivatives are steroids, among the most potent anti-inflammatory drugs known. Their use can substantially reduce the swelling, warmth, tenderness and pain that are associated with inflammation.
While steroid dosage should be kept at the lowest effective level, steroids must not be stopped suddenly if they have been taken for more than four weeks. By this time, some shrinkage of the adrenal glands will have occurred, as their task of producing cortisone has been lessened. If illness or injury follows, the glands may not be able to produce enough cortisone to keep one from going into shock. A slow reduction in the dosage of steroids allows the adrenal glands to regain their ability to manufacture natural cortisone.
Steroids may be given as a pill, by intra-muscular (IM) injection or may be injected directly into a vein. Cortisone may disturb menstrual cycles, and can cause elevated blood pressure to rise or diabetic control to worsen. These effects are very rare with an occasional shot.
Occasionally, very large doses of steroids may be given for a short period of time. This treatment referred to as "pulse steroid treatment," involves giving 1000 mg of methyl-prednisone intravenously each day for three days.
Cortisone is an extremely effective drug and may be necessary for control. Although many patients do not need to stay on steroids continuously, those with severe disease may require long-term steroid treatment.
With long-term use, some of the more common side effects of steroids include changes in appearance, such as acne, development of a round or moon-shaped face and an increased appetite leading to eight gain. Steroids may also cause a redistribution of fat, leading to a swollen face and abdomen, but thin arms and legs. In some cases, the skin becomes more fragile, which leads to easy bruising. These take weeks to begin appearing.
Psychological side effects of steroids include irritability, agitation, euphoria or depression. Insomnia can also be a side effect. These changes in appearance and mood are often more apparent with high doses of steroids, and may begin within days.
An increase in susceptibility to infections may occur with very high doses of steroids. Prednisone may also aggravate diabetes, glaucoma, and high blood pressure, and often increases cholesterol and triglyceride levels in the blood. In children, steroids can suppress growth. These effects are reversed once the steroids are stopped.
Other side effects that may be caused by the long-term use of steroids include cataracts, muscle weakness, avascular necrosis of bone and osteoporosis. These usually do not occur with less than four weeks of treatment.
Avascular necrosis of bone, usually associated with high doses of cortisone over long periods of time, produces hip pain and an abnormal MRI scan. It occurs most often in the hip, but it can also affect the shoulders, knees and other joints. Caught early, the joint can be saved by "decompression" by an orthopedic surgeon. Once full developed, avascular necrosis is painful and often requires surgical joint replacement for pain relief.
Steroids reduce calcium absorption through the gastrointestinal tract that may result in osteoporosis, or thinning of the bones. Osteoporosis can lead to bone fractures, especially compression fractures of the vertebrae, causing severe back pain. Calcium, at least 1500 mg of the calcium carbonate form or equivalent, should be taken.
There is also a relationship between steroids and premature arteriosclerosis, which is a narrowing of the blood vessels by fat (cholesterol) deposits. In general, there is a close relationship between the side effects of steroids and the dose and duration of their use. Thus, a high dose of steroids given over a long period of time is more likely to cause side effects than a lower dosage given over a shorter period of time.
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