PRECAUTIONS
General
This product, like many other steroid formulations, is sensitive to heat. Therefore,
it should not be autoclaved when it is desirable to sterilize the exterior of
the vial.
The lowest possible dose of corticosteroid should be used to control the condition
under treatment. 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.
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 congestive heart failure, hypertension, 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 active or latent peptic ulcers, diverticulitis,
fresh intestinal anastomoses, and nonspecific ulcerative colitis, since they
may increase the risk of a perforation.
Signs of peritoneal irritation following gastrointestinal perforation in patients
receiving corticosteroids may be minimal or absent.
There is an enhanced effect of corticosteroids in patients with cirrhosis.
Intra-Articular and Soft Tissue Administration
Intra-articularly injected corticosteroids may be systemically absorbed.
Appropriate examination of any joint fluid present is necessary to exclude
a septic process. A marked increase in pain accompanied by local swelling, further
restriction of joint motion, fever, and malaise are suggestive of septic arthritis.
If this complication occurs and the diagnosis of sepsis is confirmed, appropriate
antimicrobial therapy should be instituted.
Injection of a steroid into an infected site is to be avoided. Local injection
of a steroid into a previously infected joint is not usually recommended.
Corticosteroid injection into unstable joints is generally not recommended.
Intra-articular injection may result in damage to joint tissues (see ADVERSE
REACTIONS: Musculoskeletal).
Musculoskeletal
Corticosteroids decrease bone formation and increase bone resorption both through
their effect on calcium regulation (ie, 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
pediatric patients and the development of osteoporosis at any age. Special consideration
should be given to patients at increased risk of osteoporosis (ie, 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
(eg, myasthenia gravis), or in patients receiving concomitant therapy with neuromuscular
blocking drugs (eg, 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.
Psychiatric 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.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No adequate studies have been conducted in animals to determine whether corticosteroids
have a potential for carcinogenesis or mutagenesis.
Steroids may increase or decrease motility and number of spermatozoa in some
patients.
Pregnancy
Teratogenic Effects - Pregnancy Category C
Corticosteroids have been shown to be teratogenic in many species when given
in doses equivalent to the human dose. Animal studies in which corticosteroids
have 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. Corticosteroids 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 corticosteroids are administered
to a nursing woman.
Pediatric Use
This product contains benzyl alcohol as a preservative. Benzyl alcohol, a component
of this product, has been associated with serious adverse events and death,
particularly in pediatric patients. The “gasping syndrome” (characterized
by central nervous system depression, metabolic acidosis, gasping respirations,
and high levels of benzyl alcohol and its metabolites found in the blood and
urine) has been associated with benzyl alcohol dosages > 99 mg/kg/day in neonates
and low-birth-weight neonates. Additional symptoms may include gradual neurological
deterioration, seizures, intracranial hemorrhage, hematologic abnormalities,
skin breakdown, hepatic and renal failure, hypotension, bradycardia, and cardiovascular
collapse. Although normal therapeutic doses of this product deliver amounts
of benzyl alcohol that are substantially lower than those reported in association
with the “gasping syndrome,” the minimum amount of benzyl alcohol
at which toxicity may occur is not known. Premature and low-birth-weight infants,
as well as patients receiving high dosages, may be more likely to develop toxicity.
Practitioners administering this and other medications containing benzyl alcohol
should consider the combined daily metabolic load of benzyl alcohol from all
sources.
The efficacy and safety of corticosteroids 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). Other indications for pediatric use of corticosteroids, eg, 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 corticosteroids 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.
Pediatric patients 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 (ie, cosyntropin stimulation and basal cortisol plasma
levels). Growth velocity may therefore be a more sensitive indicator of systemic
corticosteroid exposure in pediatric patients than some commonly used tests
of HPA axis function. The linear growth of pediatric patients treated with corticosteroids
should be monitored, and the potential growth effects of prolonged treatment
should be weighed against clinical benefits obtained and the availability of
treatment alternatives. In order to minimize the potential growth effects of
corticosteroids, pediatric patients should be titrated to the lowest effective
dose.
Geriatric Use
No overall differences in safety or effectiveness were observed between elderly
subjects and younger subjects, and other reported clinical experience has not
identified differences in responses between the elderly and younger patients,
but greater sensitivity of some older individuals cannot be ruled out.