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PRECAUTIONS
General
Clobetasol propionate is a highly potent topical cortico-steroid
that has been shown to suppress the HPA axis at doses
as low as 2 g/day.
Clobetasol propionate should not be used in the treatment
of rosacea or perioral dermatitis, and should not be used
on the face, groin, or axillae.
Systemic absorption of topical corticosteroids can produce
reversible HPA axis suppression with the potential for
glucocorticosteroid insufficiency after withdrawal from
treatment. Manifestations of Cushing’s syndrome,
hyperglycemia, and glucosuria can also be produced in
some patients by systemic absorption of topical corticosteroids
while on therapy.
Patients applying a topical steroid to a large surface
area or to areas under occlusion should be evaluated periodically
for evidence of HPA axis suppression. This may be done
by using the ACTH stimulation, A.M. plasma cortisol, and
urinary free cortisol tests. Patients receiving superpotent
corticosteroids should not be treated for more than 2
weeks at a time and only small areas should be treated
at any one time due to the increased risk of HPA suppression.
Clobetasol propionate produced HPA axis suppression when
used at doses as low as 2 grams per day for 1 week in
patients with eczema.
If HPA axis suppression is noted, an attempt should be
made to withdraw the drug, to reduce the frequency of
application, or to substitute a less potent corticosteroid.
Recovery of HPA axis function is generally prompt upon
discontinuation of topical corticosteroids. Infrequently,
signs and symptoms of glucocorticosteroid insufficiency
may occur requiring supplemental systemic corticosteroids.
For information on systemic supplementation, see prescribing
information for those products.
Temovate & Emollient: In a controlled
clinical trial involving patients with moderate to severe
plaque-type psoriasis, TEMOVATE Emollient applied to 5%
to 10% of body surface area resulted in additional benefits
in the treatment of patients for 4 consecutive weeks.
In this trial, there were no clobetasol-treated patients
with clinically significant decreases in morning cortisol
levels after 4 weeks of treatment; however, morning cortisol
levels may not identify patients with adrenal dysfunction.
Therefore, the additional benefits of extending treatment
beyond 2 weeks should be weighed against the potential
for HPA suppression. Therapy should be discontinued when
control has been achieved. Treatment beyond 4 consecutive
weeks is not recommended.
Pediatric patients may be more susceptible to systemic
toxicity from equivalent doses due to their larger skin
surface to body mass ratios (see Pediatric Use, below).
If irritation develops, clobetasol propionate should
be discontinued and appropriate therapy instituted. Allergic
contact dermatitis with corticosteroids is usually diagnosed
by observing failure to heal rather than noting a clinical
exacerbation as with most topical products not containing
corticosteroids. Such an observation should be corroborated
with appropriate diagnostic patch testing.
If concomitant skin infections are present or develop,
an appropriate antifungal or antibacterial agent should
be used. If a favorable response does not occur promptly,
use of clobetasol propionate ointment should be discontinued
until the infection has been adequately controlled.
Laboratory Tests
The following tests may be helpful in evaluating HPA
axis suppression: ACTH stimulation test, A.M. plasma cortisol
test, Urinary free cortisol test.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Long-term animal studies have not been performed to evaluate
the carcinogenic potential of clobetasol propionate.
Studies in the rat following oral administration at dosage
levels up to 50 mg/ kg per day revealed that the females
exhibited an increase in the number of resorbed embryos
and a decrease in the number of living fetuses at the
highest dose.
Clobetasol propionate was non-mutagenic in three different
test systems: the Ames test, the Saccharomyces cerevisiae
gene conversion assay, and the E. coli B WP2 fluctuation
test.
Pregnancy
Teratogenic Effects: Pregnancy Category
C: Corticosteroids have been shown to be teratogenic in
laboratory animals when administered systemically at relatively
low dosage levels. Some corticosteroids have been shown
to be teratogenic after dermal application to laboratory
animals.
Clobetasol propionate has not been tested for teratogenicity
when applied topically; however, it is absorbed percutaneously,
and when administered subcutaneously it was a significant
teratogen in both the rabbit and mouse. Clobetasol propionate
has greater teratogenic potential than steroids that are
less potent.
Teratogenicity studies in mice using the subcutaneous
route resulted in fetotoxicity at the highest dose tested
(1 mg/kg) and teratogenicity at all dose levels tested
down to 0.03 mg/kg. These doses are approximately 0.33
and 0.01 times, respectively, the human topical dose of
clobetasol propionate ointment. Abnormalities seen included
cleft palate and skeletal abnormalities. In rabbits, clobetasol
propionate was teratogenic at doses of 3 and 10 µg/kg.
These doses are approximately 0.001 and 0.003 times, respectively,
the human topical dose of clobetasol propionate ointment.
Abnormalities seen included cleft palate, cranioschisis,
and other skeletal abnormalities.
There are no adequate and well-controlled studies of
the teratogenic potential of clobetasol propionate in
pregnant women. Clobetasol propionate ointment should
be used during pregnancy only if the potential benefit
justifies the potential risk to the fetus.
Nursing Mothers
Systemically administered corticosteroids appear in human
milk and could suppress growth, interfere with endogenous
corticosteroid production, or cause other untoward effects.
It is not known whether topical administration of corticosteroids
could result in sufficient systemic absorption to produce
detectable quantities in human milk. Because many drugs
are excreted in human milk, caution should be exercised
when clobetasol propionate ointment is administered to
a nursing woman.
Pediatric Use
Safety and effectiveness of clobetasol propionate ointment
in pediatric patients have not been established. Use in
children under 12 years of age is not recommended. Because
of a higher ratio of skin surface area to body mass, pediatric
patients are at a greater risk than adults of HPA axis
suppression and Cushing’s syndrome when they are
treated with topical corticosteroids. They are therefore
also at greater risk of adrenal insufficiency during or
after withdrawal of treatment. Adverse effects including
striae have been reported with inappropriate use of topical
corticosteroids in infants and children.
HPA axis suppression, Cushing’s syndrome, linear
growth retardation, delayed weight gain and intracranial
hypertension have been reported in children receiving
topical corticosteroids. Manifestations of adrenal suppression
in children include low plasma cortisol levels, and an
absence of response to ACTH stimulation. Manifestations
of intracranial hypertension include bulging fontanelles,
headaches, and bilateral papilledema.
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