Following prolonged therapy, withdrawal of
corticosteroids may result in symptoms of the corticosteroid withdrawal
syndrome including fever, myalgia, arthralgia, and malaise. This may
occur in patients even without evidence of adrenal insufficiency.
There is an enhanced effect of corticosteroids in patients with hypothyroidism and in those with cirrhosis.
Corticosteroids should be used cautiously in patients with ocular herpes simplex because of possible corneal perforation.
The lowest possible dose of corticosteroid should be used to
control the condition under treatment, and when reduction in dosage is
possible, the reduction should be gradual.
Psychic derangements may appear when corticosteroids are used,
ranging from euphoria, insomnia, mood swings, personality changes, and
severe depression, to frank psychotic manifestations. Also, existing
emotional instability or psychotic tendencies may be aggravated by
corticosteroids.
Aspirin should be used cautiously in conjunction with corticosteroids in hypoprothrombinemia.
Steroids should be used with caution in nonspecific ulcerative
colitis, if there is a probability of impending perforation, abscess,
or other pyogenic infection, diverticulitis, fresh intestinal
anastomoses, active or latent peptic ulcer, renal insufficiency,
hypertension, osteoporosis and myasthenia gravis. Signs of peritoneal
irritation following gastrointestinal perforation in patients receiving
large doses of corticosteroids may be minimal or absent. Fat embolism
has been reported as a possible complication of hypercortisonism.
When large doses are given, some authorities advise that
corticosteroids be taken with meals and antacids taken between meals to
help to prevent peptic ulcer.
Growth and development of infants and children on prolonged corticosteroid therapy should be carefully observed.
Steroids may increase or decrease motility and number of spermatozoa in some patients.
Phenytoin, phenobarbital, ephedrine, and rifampin may enhance
the metabolic clearance of corticosteroids, resulting in decreased
blood levels and lessened physiologic activity, thus requiring
adjustment in corticosteroid dosage. These interactions may interfere
with dexamethasone suppression tests which should be interpreted with
caution during administration of these drugs.
False-negative results in the dexamethasone suppression test
(DST) in patients being treated with indomethacin have been reported.
Thus, results of the DST should be interpreted with caution in these
patients.
The prothrombin time should be checked frequently in patients
who are receiving corticosteroids and coumarin anticoagulants at the
same time because of reports that corticosteroids have altered the
response to these anticoagulants. Studies have shown that the usual
effect produced by adding corticosteroids is inhibition of response to
coumarins, although there have been some conflicting reports of
potentiation not substantiated by studies.
When corticosteroids are administered concomitantly with
potassium-depleting diuretics, patients should be observed closely for
development of hypokalemia.