Provate S

Uses

This ointment is used for the relief of the inflammatory manifestations of hyperkeratotic and dry corticosteroid responsive dermatoses such as, psoriasis, chronic atopic dermatitis, neurodermatitis (licehen Simplex, Chronicus), lichen planus, eczema (including nummular eczema, hand eczema, eczematous dermatitis), seborrheic dermatitis of the scalp, ichthyosis vulgaris and other ichthyotic conditions.

Provate S is also used to associated treatment for these conditions: Alopecia, Severe Plaque psoriasis, Corticosteroid responsive, Inflammatory Dermatosis, Corticosteroid responsive, pruritic Dermatosis, Moderate Plaque psoriasis, Moderate Scalp Psoriasis, Severe Scalp PsoriasisAcne, Actinic Keratosis (AK), Alopecia Areata (AA), Atopic Dermatitis (AD), Blackheads, Chronic Eczema, Chronic cutaneous lupus erythematosus, Corns, Dandruff, Dermatitis, Contact, Dermatitis, Eczematous, Dermatitis, Eczematous of the scalp, Discoid Lupus Erythematosus (DLE), Foot Callus, Fungal skin infection, Furuncle, Hand Eczema, Hyperkeratosis, Hyperkeratosis follicularis et parafollicularis, Infections, Fungal, Infections, Fungal of the Skin Folds, Infections, Fungal of the face, Infections, Fungal of the feet, Infections, Fungal of the hand, Keratosis Palmaris et Plantaris, Lichen, Lichen Plano-Pilaris, Lichen Planus (LP), Lichen simplex chronicus, Molluscum Contagiosum, Musculoskeletal Pain, Neurodermatitis, Palmo-Plantar Pustulosis, Plantar Warts, Pruritus, Psoriasis, Psoriasis Vulgaris (Plaque Psoriasis), Psoriasis of the scalp, Rash, Ringworm of the Skin, Ringworm of the scalp, Seborrheic Dermatitis, Seborrhoeic Dermatitis of the Scalp, Skin Infections, Bacterial, Verrucous Psoriasis, Warts, Calluses, Corticosteroid-responsive dermatoses, Keratinization disorders, Scaling, Scaling of skin, Scalp seborrhea, Superficial Fungal skin infection, Keratolysis

How Provate S works

The short term effects of corticosteroids are decreased vasodilation and permeability of capillaries, as well as decreased leukocyte migration to sites of inflammation. Corticosteroids binding to the glucocorticoid receptor mediates changes in gene expression that lead to multiple downstream effects over hours to days.

Glucocorticoids inhibit neutrophil apoptosis and demargination; they inhibit phospholipase A2, which decreases the formation of arachidonic acid derivatives; they inhibit NF-Kappa B and other inflammatory transcription factors; they promote anti-inflammatory genes like interleukin-10.

Lower doses of corticosteroids provide an anti-inflammatory effect, while higher doses are immunosuppressive. High doses of glucocorticoids for an extended period bind to the mineralocorticoid receptor, raising sodium levels and decreasing potassium levels.

Salicylic acid directly irreversibly inhibits COX-1 and COX-2 to decrease conversion of arachidonic acid to precursors of prostaglandins and thromboxanes. Salicylate's use in rheumatic diseases is due to it's analgesic and anti-inflammatory activity. Salicylic acid is a key ingredient in many skin-care products for the treatment of acne, psoriasis, calluses, corns, keratosis pilaris, and warts. Salicylic acid allows cells of the epidermis to more readily slough off. Because of its effect on skin cells, salicylic acid is used in several shampoos used to treat dandruff. Salicylic acid is also used as an active ingredient in gels which remove verrucas (plantar warts). Salicylic acid competitively inhibits oxidation of uridine-5-diphosphoglucose (UDPG) with nicotinamide adenosine dinucleotide (NAD) and noncompetitively with UDPG. It also competitively inhibits the transferring of the glucuronyl group of uridine-5-phosphoglucuronic acid (UDPGA) to a phenolic acceptor. Inhibition of mucopoly saccharide synthesis is likely responsible for the slowing of wound healing with salicylates.

Dosage

Provate S dosage

Adult: Apply a thin layer of this ointment to the affected skin areas twice daily and rub in gently & completely. For some patients, adequate maintenance therapy may be achieved with less frequent application. As with other higher active corticosteroids, therapy should be discontinued when control has been achieved. If no improvement is seen within 2 weeks, reassessment of diagnosis may be necessary. It should not be used with occlusive dressing. Treatment beyond 2 consecutive weeks is not exceeding 50 gm/week because of the potential for the drug to suppress the hypothalamic pituitary adrenal axis.

Children: Use in pediatric patients under 12 years of age is not recommended.

For external use only.

Side Effects

As with other topical corticosteroids, prolonged use of large amounts of Clobetasol Propionate or treatment of extensive areas can result in sufficient systemic absorption to produce the features of hypercortisolism. This effect is more likely to occur in infants and children, and if occlusive dressings are used. Local atrophy may occur after prolonged treatment. In rare instances, treatment of psoriasis with corticosteroids (or its withdrawal) is thought to have provoked the pustular form of the diseases. Clobetasol Propionate is usually well tolerated, but if signs of hypersensitivity appear, application should be stopped immediately. Possible sensitivity reactions, drying and irritation when using Salicylic Acid.

Toxicity

Data regarding acute overdoses of glucocorticoids are rare. Overdoses of clobetasol propionate can lead to reversible HPA axis suppression and glucocorticoid insufficiency. Chronic high doses of glucocorticoids can lead to the development of cataract, glaucoma, hypertension, water retention, hyperlipidemia, peptic ulcer, pancreatitis, myopathy, osteoporosis, mood changes, psychosis, dermal atrophy, allergy, acne, hypertrichosis, immune suppression, decreased resistance to infection, moon face, hyperglycemia, hypocalcemia, hypophosphatemia, metabolic acidosis, growth suppression, and secondary adrenal insufficiency.[A188405] Overdose may be treated by adjusting the dose or stopping the corticosteroid as well as initiating symptomatic and supportive treatment.[A188405]

Oral rat LD50: 891 mg/kg. Inhalation rat LC50: > 900 mg/m3/1hr. Irritation: skin rabbit: 500 mg/24H mild. Eye rabbit: 100 mg severe. Investigated a mutagen and reproductive effector.

Precaution

Not for prolonged use in high concentrations and on large areas of the body. Impaired peripheral circulation or diabetes. Avoid broken skin, mouth, eyes, mucous membranes and anogenital region.

Interaction

There has been no report of interaction with Clobetasol Propionate ointment and cream. There are no known interactions of Salicylic Acid when used as indicated. However, topical salicylic acid may increase the absorption of other topically applied medicines. Concomitant use of Salicylic Acid Ointment and other topical medicines on the same area of skin should therefore be avoided.

Volume of Distribution

Data regarding the volume of distribution of clobetasole propionate are not readily available.

The volume of distribution is about 170 mL/kg of body weight.

Elimination Route

Twice daily application of clobetasol foam leads to a C_max of 59±36pg/mL with a T_max of 5 hours. Clobetasol cream showed an increase in clobetasol concentrations from 50.7±96.0pg/mL to 56.3±104.7pg/mL.

Half Life

Data regarding the half life of clobetasol propionate are not readily available.

Clearance

Data regarding the clearance of clobetasol propionate are not readily available.

Elimination Route

Corticosteroids are eliminated predominantly in the urine.

About 10% is excreted unchanged in the urine.

Pregnancy & Breastfeeding use

Topical administration of corticosteroids to pregnant animals can cause abnormalities of fetal development. The relevance of this finding to human beings has not been established. The safe use of Clobetasol Propionate during lactation has not been established. However, the administration of Clobetasol Propionate during pregnancy and lactation should only be considered if the expected benefit to the mother is greater than any possible risk to the fetus. Drugs of this class should not be used extensively in pregnant patients in large amounts or for prolonged periods of time. Whilst there are no known contra-indications to the use of Salicylic Acid ointment during pregnancy and lactation, the safety has not been established. Salicylic Acid ointment shold therefore be used with caution.

Contraindication

ClobetasolPropionatev is contraindicated in patients with hypersensitivity to Clobetasol Propionate. Provate S is contraindicated also in the treatment of primary infected bacterial or fungal skin lesions if no anti-infective agent is used simultaneously, in primary cutaneous viral infections (i.e., herpes simplex, vaccinia and varicella) and in tuberculous skin lesions. Clobetasol Propionate is also contraindicated in dermatoses in children under one year of age, including dermatitis and diaper eruptions. Salicylic Acid is contraindicated in patients displaying salicylate hyersensitivity, or sensitivity to any other ingredient in the preparation.

Special Warning

Use in Paediatrics: The drug may be used in paediatrics patients in appropriate dosage, but large quantities for prolonged period should be avoided. It is contraindicated in children less than one year.

Salicylic Acid is used in children over 2 years.

Acute Overdose

Acute overdosage is very unlikely to occur, however, in the case of chronic overdosage or misuse, the features of hypercortisolism may appear and in this situation topical steroids should be discontinued gradually. However, because of the risk of acute adrenal suppression this should be done under medical supervision. Symptoms osslystemic salicylate poisoning (tinnitus, dizziness and deafness) have been reported after the application of Salicylic Acid to large areas of skin and for prolonged periods. Salicylism may also occur in the unlikely event of large quantities being ingested. Salicylism is ullikely to occur if Salicylic Acid ointment is used as indicated. Salicylate poisoining is usually associated with plasma concentrations >350 mg/L. Most adult deaths occur in patients whose concentrations exceed 700 ml/L. Single doses less than 100 mg/kg are unlikely to cause serious poisoning.

Storage Condition

Store in a cool and dry place, protected from light.

Innovators Monograph

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