Adverse events are listed below by system organ class and frequency. Frequencies are defined as: very common (≥1/10), common (≥1/100 and <1/10), uncommon (≥1/1000 and <1/100), rare (≥1/10,000 and <1/1000) and very rare (<1/10,000) including isolated reports. Very common, common and uncommon events were generally determined from clinical trial data. The background rates in placebo and comparator groups were not taken into account when assigning frequency categories to adverse events derived from clinical trial data, since these rates were generally comparable to those in the active treatment group. Rare and very rare events were generally derived from spontaneous data.
Infections and Infestations
Very rare: Opportunistic infection
Immune System Disorders Very rare: Hypersensitivity
Local hypersensitivity reactions such as erythema, rash, pruritus, urticaria, local skin burning and allergic contact dermatitis may occur at the site of application and may resemble symptoms of the condition under treatment.
In the unlikely event of signs of hypersensitivity appearing, application should stop immediately.
Endocrine Disorders
Very rare: Hypothalamic-pituitary adrenal (HPA) axis suppression: Cushingoid features (e.g. moon face, central obesity), delayed weight gain/growth retardation in children, osteoporosis, glaucoma, hyperglycaemia/glucosuria, cataract, hypertension, increased weight/obesity, decreased endogenous cortisol levels.
When large areas of the body are being treated with clobetasone butyrate, it is possible that some patients will absorb sufficient steroid to cause transient adrenal suppression despite the low degree of systemic activity associated with clobetasone butyrate.
Skin and Subcutaneous Tissue Disorders
Very rare: Allergic contact dermatitis, urticaria, skin atrophy*, pigmentation changes*, exacerbation of underlying symptoms, local skin burning, hypertrichosis, rash, pruritis, erythema.
Local atrophic changes could possibly occur in situations where moisture increases absorption of clobetasone butyrate, but only after prolonged use.
*Skin features secondary to local and/or systemic effects of hypothalamic- pituitary adrenal (HPA) axis suppression.
Not known (cannot be estimated from available data): Withdrawal reactions – redness of the skin which may extend to areas beyond the initial affected area, burning or stinging sensation, itch, skin peeling, oozing pustules (see Section 4.4).
General Disorders and Administration Site Conditions
Very rare: Exacerbation of underlying symptoms.
Eye Disorders:
Not known (cannot be estimated from available data):
Blurred Vision (see Section 4.4)