Kerato

Kerato Uses, Dosage, Side Effects, Food Interaction and all others data.

Coal tar has antipruritic, keratoplastic and keratolytic properties. It slows down excessive epidermal cell turnover and is often used topically either alone or in combination with other drugs (e.g. salicyclic acid, sulfur) in conditions such as dandruff, seborrheic dermatitis or psoriasis.

Decrease bacterial growth.

Resorcinol is a 1,3-isomer (or meta-isomer) of benzenediol with the formula C6H4(OH)2. It is used as an antiseptic and disinfectant in topical pharmaceutical products in the treatment of skin disorders and infections such as acne, seborrheic dermatitis, eczema, psoriasis, corns, calluses, and warts. It exerts a keratolytic activity. Resorcinol works by helping to remove hard, scaly, or roughened skin.

Although it is primarily indicated for use as a topical application, resorcinol also possesses a well-documented anti-thyroidal activity that is generally not relied upon for any kind of formal therapeutic indication.

In vitro and in vivo studies have demonstrated that resorcinol can inhibit peroxidases in the thyroid and subsequently block the synthesis of thyroid hormones and cause goiter . Resorcinol interferes with the iodination of tyrosine and the oxidation of iodide . In an in vitro study involving lactoperoxidase (LPO) and thyroid peroxidase (TPO), it was shown that the mechanism of these two enzymes can become irreversibly inhibited by way of a suicide inactivation by resorcinol .

Salicylic acid has a potent keratolytic action and a slight antiseptic action when applied topically. It softens and destroys the stratum corneum by increasing endogenous hydration which causes the horny layer of the skin to swell, soften, and then desquamate. At high concentrations, salicylic acid has a caustic effect. It also possesses weak antifungal and antibacterial activity.

Salicylic acid treats acne by causing skin cells to slough off more readily, preventing pores from clogging up. This effect on skin cells also makes salicylic acid an active ingredient in several shampoos meant to treat dandruff. Use of straight salicylic solution may cause hyperpigmentation on unpretreated skin for those with darker skin types (Fitzpatrick phototypes IV, V, VI), as well as with the lack of use of a broad spectrum sunblock. Subsalicylate in combination with bismuth form the popular stomach relief aid known commonly as Pepto-Bismol. When combined the two key ingredients help control diarrhea, nausea, heartburn, and even gas. It is also very mildly anti-biotic.

Kerato
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Kerato
Generic	Coal Tar + Resorcinol + Salicylic Acid + Sulphur
Weight	2%, 3%
Type	Oil
Therapeutic Class
Manufacturer	Wilshire Laboratories (pvt) Ltd,
Available Country	Pakistan
Last Updated:	September 19, 2023 at 7:00 am

Uses

Coal Tar Cream is used for psoriasis. Soritar Cream has a keratoplastic and antipruritic effect in psoriasis.

Contemporary therapeutic uses for resorcinol primarily revolve around the use of the phenol derivative as an active ingredient in topical antiseptics or as topical antibacterial skin treatment products for conditions like acne, seborrheic dermatitis, eczema, and others .

6% Salicylic Acid: This topical preparations treat the following common scaly conditions:

Chronic atopic dermatitis
Lichen simplex
Psoriasis
Seborrhoeic dermatitis
Ichthiosis

12% Salicylic Acid: This topical preparations treat the following common scaly conditions:

Warts (small excessive growths of skin caused by a type of virus. Warts often occur on the fingers or on the back of the hands).
Verruca (occurs only on the sole of the feet and can be painful. It often looks like a small white ring of skin with a black dot in the centre).
Corns and Calluses (are hard, thick pads of skin caused by pressure and friction. They usually occur on the feet due to poorly fitting shoes and can occur on the hands).

Kerato is also used to associated treatment for these conditions: Dandruff, Psoriasis, Seborrheic Dermatitis, Seborrhoeic Dermatitis of the ScalpAcne VulgarisAcne, 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 Kerato works

Coal tar ointment is a keratolytic. It works by slowing bacterial growth and loosening and softening scales and crust.

Data regarding the specific mechanisms of action of resorcinol does not appear to be readily accessible in the literature. Nevertheless, the effectiveness of the agent in treating various topical, dermatological conditions by eliciting antibacterial and keratolytic actions appears to stem from resorcinol's propensity for protein precipitation . In particular, it appears that resorcinol indicated for treating acne, dermatitis, or eczema in various skin care topical applications and peels revolves around the compound's ability to precipitate cutaneous proteins from the treated skin .

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

Kerato dosage

Adults and children over 12 years of age: Ensure that the lesions are clean. Apply a thin layer of Coal Tar Cream two or three times a day on to the affected areas massage in gently and leave to dry.

For young children under 12 years of age and the elderly: The emulsion may be diluted by mixing it with a few drops of cooled freshly boiled in the palm of the hand.

Topical/Cutaneous (Adult)-

Hyperkeratotic and scaling skin conditions: As 1.8-3% preparation: Apply to affected area of the skin and/or scalp 1-4 times daily.

Acne: As 0.5-2% preparation: Apply thinly to affected area 1-3 times daily, reduce to once daily or every other day if dryness or peeling occur.

Warts and calluses:

As 12-40% plaster: Fit over the wart/callus for 48 hr, repeat process 48 hrly as needed until wart/callus is removed (up to 12 wk for warts or up to 14 days for calluses).
As 5-17% preparation in collodion-like vehicle: Apply a small amount to sufficiently cover wart/callus and allow to dry. Repeat 1-2 times daily until wart/callus is removed (up to 12 wk for warts or up to 14 days for calluses).
As 15% preparation in karaya gum-glycol plaster vehicle: Smoothen warts with emery board and place a drop of warm water prior to application. Apply the plaster in the evening and leave in place for at least 8 hr to be removed in the morning. Repeat process 24 hrly, if necessary up to 12 wk.

Side Effects

Skin and subcutaneous tissue disorders: Skin irritation, photosensitivity of the skin, Coal Tar Cream may cause acne-like eruptions of the skin. There is an increased risk of skin cancer in psoriatic patients treated with a combination of Coal Tar Cream and UVB radiation has been reported. However epidemiological studies of patients treated with Coal Tar Cream on its own are inconclusive. The risk of toxicity should be taken into account when considering the prescribing this product for the patient.

An allergic reaction (shortness of breath, closing of the throat, swelling of the lips, face or tongue or hives) or severe skin irritation.

Toxicity

LD50: Not available.

Effects in man include CNS effects, mainly in persons who have used creams containing high levels of resorcinol, effects on the erythrocytes (especially methaemoglobinaemia, mainly in babies and infants) and, after prolonged exposure, effects on the thyroid gland (like goiter or especially chronic myxoedema) . In addition, exogenous ochronosis is associated with prolonged exposure to resorcinol . In persons suffering from resorcinol poisoning, the symptoms included anemia, spleen siderosis, and fatty degeneration of the liver and kidneys .

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

For external use only. Avoid contact with eyes and other mucous membranes.

Interaction

Do not use other topical preparations on the treated area unless otherwise directed by your healthcare provider. They may interfere with treatment or increase skin irritation.