PRECAUTIONS
General
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.
Since complications of treatment with glucocorticoids are dependent on the size of the dose and the duration of treatment, a risk/benefit decision must be made in each individual case as to dose and duration of treatment and as to whether daily or intermittent therapy should be used.
There is an enhanced effect of corticosteroids in patients with hypothyroidism and in those with cirrhosis.
Kaposi's sarcoma has been reported to occur in patients receiving corticosteroid therapy, most often for chronic conditions. Discontinuation of corticosteroids may result in clinical improvement.
Cardio-renal
As sodium retention with resultant edema and potassium loss may occur in patients
receiving corticosteroids, these agents should be used with caution in patients
with hypertension, congestive heart failure, or renal insufficiency.
Endocrine
Drug-induced secondary adrenocortical insufficiency may be minimized by gradual
reduction of dosage. This type of relative insufficiency may persist for months
after discontinuation of therapy; therefore, in any situation of stress occurring
during that period, hormone therapy should be reinstituted. Since mineralocorticoid
secretion may be impaired, salt and/or a mineralocorticoid should be administered
concurrently.
Gastrointestinal
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.
Signs of peritoneal irritation following gastrointestinal perforation in patients receiving corticosteroids may be minimal or absent.
Musculoskeletal
Corticosteroids decrease bone formation and increase bone resorption both through
their effect on calcium regulation (i.e., decreasing absorption and increasing
excretion) and inhibition of osteoblast function. This, together with a decrease
in the protein matrix of the bone secondary to an increase in protein catabolism,
and reduced sex hormone production, may lead to inhibition of bone growth in
children and adolescents and the development of osteoporosis at any age. Special
consideration should be given to patients at increased risk of osteoporosis
(i.e., postmenopausal women) before initiating corticosteroid therapy.
Neuro-psychiatric
Although controlled clinical trials have shown corticosteroids to be effective
in speeding the resolution of acute exacerbations of multiple sclerosis, they
do not show that they affect the ultimate outcome or natural history of the
disease. The studies do show that relatively high doses of corticosteroids are
necessary to demonstrate a significant effect. (See DOSAGE
AND ADMINISTRATION.)
An acute myopathy has been observed with the use of high doses of corticosteroids, most often occurring in patients with disorders of neuromuscular transmission (e.g., myasthenia gravis), or in patients receiving concomitant therapy with neuromuscular blocking drugs (e.g., pancuronium). This acute myopathy is generalized, may involve ocular and respiratory muscles, and may result in quadriparesis. Elevation of creatinine kinase may occur. Clinical improvement or recovery after stopping corticosteroids may require weeks to years.
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.
Ophthalmic
Intraocular pressure may become elevated in some individuals. If steroid therapy
is continued for more than 6 weeks, intraocular pressure should be monitored.
Pregnancy
Teratogenic Effects
Pregnancy Category C. Prednisolone has been shown to be teratogenic
in many species when given in doses equivalent to the human dose. Animal studies
in which prednisolone has been given to pregnant mice, rats, and rabbits have
yielded an increased incidence of cleft palate in the offspring. There are no
adequate and well controlled studies in pregnant women. Prednisolone sodium (prednisolone sodium phosphate oral solution)
phosphate, USP, oral solution should be used during pregnancy only if the potential
benefit justifies the potential risk to the fetus. Infants born to mothers who
have received corticosteroids during pregnancy should be carefully observed
for signs of hypoadrenalism.
Nursing Mothers
Systemically administered corticosteroids appear in human milk and could suppress
growth, interfere with endogenous corticosteroid production, or cause other
untoward effects. Caution should be exercised when prednisolone sodium (prednisolone sodium phosphate oral solution) phosphate,
USP, oral solution is administered to a nursing woman.
Pediatric Use
The efficacy and safety of prednisolone in the pediatric population are based
on the well-established course of effect of corticosteroids which is similar
in pediatric and adult populations. Published studies provide evidence of efficacy
and safety in pediatric patients for the treatment of nephrotic syndrome (> 2 years of age), and aggressive lymphomas and leukemias (> 1 month of age).
However, some of these conclusions and other indications for pediatric use of
corticosteroid, e.g., severe asthma and wheezing, are based on adequate and
well-controlled trials conducted in adults, on the premises that the course
of the diseases and their pathophysiology are considered to be substantially
similar in both populations.
The adverse effects of prednisolone in pediatric patients are similar to those
in adults (see ADVERSE REACTIONS). Like adults, pediatric patients should
be carefully observed with frequent measurements of blood pressure, weight,
height, intraocular pressure, and clinical evaluation for the presence of infection,
psychosocial disturbances, thromboembolism, peptic ulcers, cataracts, and osteoporosis.
Children who are treated with corticosteroids by any route, including systemically
administered corticosteroids, may experience a decrease in their growth velocity.
This negative impact of corticosteroids on growth has been observed at low systemic
doses and in the absence of laboratory evidence of HPA axis suppression (i.e.,
cosyntropin stimulation and basal cortisol plasma levels). Growth velocity may
therefore be a more sensitive indicator of systemic corticosteroid exposure
in children than some commonly used tests of HPA axis function. The linear growth
of children treated with corticosteroids by any route should be monitored, and
the potential growth effects of prolonged treatment should be weighed against
clinical benefits obtained and the availability of other treatment alternatives.
In order to minimize the potential growth effects of corticosteroids, children
should be titrated to the lowest effective dose.
Geriatric Use
Clinical studies of prednisolone sodium (prednisolone sodium phosphate oral solution) phosphate, USP, oral solution did not
include sufficient numbers of subjects aged 65 and over to determine whether
they respond differently from younger subjects. Other reported clinical experience
with prednisolone sodium (prednisolone sodium phosphate oral solution) phosphate has not identified differences in responses
between the elderly and younger patients. However, the incidence of corticosteroid-induced
side effects may be increased in geriatric patients and appear to be dose-related.
Osteoporosis is the most frequently encountered complication, which occurs at
a higher incidence rate in corticosteroid-treated geriatric patients as compared
to younger populations and in age-matched controls. Losses of bone mineral density
appear to be greatest early on in the course of treatment and may recover over
time after steroid withdrawal or use of lower doses (i.e., ≤ 5 mg/day). Prednisolone
doses of 7.5 mg/day or higher have been associated with an increased relative
risk of both vertebral and nonvertebral fractures, even in the presence of higher
bone density compared to patients with involutional osteoporosis.
Routine screening of geriatric patients, including regular assessments of bone
mineral density and institution of fracture prevention strategies, along with
regular review of prednisolone indication should be undertaken to minimize complications
and keep the prednisolone dose at the lowest acceptable level. Co-administration
of bisphosphonates has been shown to retard the rate of bone loss in corticosteroid-treated
males and postmenopausal females, and these agents are recommended in the prevention
and treatment of corticosteroid-induced osteoporosis.
It has been reported that equivalent weight-based doses yield higher total
and unbound prednisolone plasma concentrations and reduced renal and non-renal
clearance in elderly patients compared to younger populations. However, it is
not clear whether dosing reductions would be necessary in elderly patients,
since these pharmacokinetic alterations may be offset by age-related differences
in responsiveness of target organs and/or less pronounced suppression of adrenal
release of cortisol. Dose selection for an elderly patient should be cautious,
usually starting at the low end of the dosing range, reflecting the greater
frequency of decreased hepatic, renal, or cardiac function, and of concomitant
disease or other drug therapy.
This drug is known to be substantially excreted by the kidney, and the risk
of toxic reactions to this drug may be greater in patients with impaired renal
function. Because elderly patients are more likely to have decreased renal function,
care should be taken in dose selection, and it may be useful to monitor renal
function (see CLINICAL PHARMACOLOGY).