Topical glucocorticoids are the topical forms of glucocorticoids. Topical glucocorticoids are used in the treatment of many skin conditions. They provide anti-inflammatory, antimitotic, and immune-system suppressing actions through various mechanisms. [1]
Topical glucocorticoids are indicated for the treatment of a variety of skin conditions: [2]
Topical glucocorticoids are available in different formulations. If an inappropriate formulation is administered, the therapeutic effect of the treatment may be delayed and rendered insufficient. [2] The condition will even be worsened in some cases. For instance, usage of a topical glucocorticoid gel on fissured hand eczema intensifies the pain as well as stinging because of the alcohol present in the gel. If an ointment is applied on a moist skin injury, it might lead to follicle infection due to the occlusive features of the ointment. [2]
Ointments are formed with water suspended in oil. Ointments are effective lubricants that can retain heat, lower the loss of water from the skin and provide better absorption of medication. Ointments are also semi-occlusive. Ointments are usually the most effective formulations for topical glucocorticoids because of their occlusive effect. However, acceptance and compliance of patients to the pharmacological treatment may be relatively low as they are oily, tacky, and usually cannot be applied to large or hairy areas. [2]
Creams are semi-solid emulsions consisting of oil suspended in water. They are of pleasant appearance and can be rinsed away by water. Regarding the same topical glucocorticoid, creams are generally more potent than lotions but less effective than ointments. [2] Creams are especially useful in acute inflammation with exudates due to their drying effects. Creams can also be applied to intertriginous areas that are inappropriate for the application of ointments. [2]
Lotions refer to suspensions or solutions of drugs in water, alcohol, or other types of solvent. Therefore, the container should be shaked adequately to ensure the drug is mixed well with the solvent before each dosage to achieve the best therapeutic effect. Lotions are especially effective in hairy areas and also in situations where the medication has to be applied in large areas on the body. [3] Lotions exert a cooling and drying effect as they dry, making them to be effective in moist skin lesions and/or in itching.
Gels are emulsions with oil suspended in water containing alcohol in the base. Gels have a jelly-like property and dry in a thin and watery film. Gel formulations have therapeutic effects as good as ointments and appearance as cosmetically appealing as creams, resulting in a high patient acceptance. [4] Gels are absorbed readily and are appropriate for distributing topical glucocorticoids to hairy areas. Gels are especially effective for inflammation with exudates. [2]
Foams spread efficiently and are easier to be applied than other preparations, especially for skin inflammation and scalp conditions. Foams can be applied and spread readily, especially in hairy areas. The compliance for foam formulations is usually high. [5] However, due to the difficulty in designing appropriate vehicles, foam formulations are generally higher in price than other formulations.
Topical glucocorticoids alter the functions of epidermal and dermal cells as well as that of the white blood cells involved in proliferative and inflammatory skin diseases. [6]
Topical glucocorticoids act as agonists for the cytoplasmic glucocorticoid receptor. After binding to the receptor, the complex is then transported into the nucleus. Within the nucleus, the complex binds to the glucocorticoid response elements in the promoter region of target genes. This results in the regulation of gene expression through altering the rate of transcription of certain mRNA. As mRNA acts as a template for protein synthesis, topical glucocorticoids can either enhance or suppress the synthesis of specific proteins. [7] This series of events lead to numerous effects. Transcription factors that are responsible for the synthesis of inflammation mediators including macrophages, eosinophils, lymphocytes, mast cells and dendritic cells are inhibited, [8] anti-inflammatory proteins such as lipocortin are released [6] and cell division of epidermal cells and dermal fibroblasts is inhibited. [9]
There are many factors determining the extent of absorption of topical glucocorticoids, including:
The differences in extent of percutaneous absorption in different parts of the body (percent of the total dose absorbed into the body through the skin) are as follows: [9]
Topical glucocorticoids are generally safer than systemic glucocorticoids. However, cutaneous and systemic adverse effects may happen, especially with the use of superpotent and potent topical glucocorticoids or excessive use of lower-potency agents.
Withdrawal syndrome: Withdrawal of topical glucocorticoids after long-term use, particularly on the face or genitals, may bring about different kinds of signs and symptoms including redness of the skin, burning or stinging sensation, itching, pain, and hot flashes on the face. [12] These symptoms could persist for days to weeks after glucocorticoids withdrawal.
Allergic reaction: The vehicles (solvent containing the drug) or preservatives are usually the agents causing sensitivity, although allergy due to the contact with glucocorticoids merely is possible. [13] Contact allergy caused by topical glucocorticoid should be suspected in patients with chronic skin conditions that do not seem to improve but instead, is worsened by the treatment.
Other: Other cutaneous adverse effect of topical glucocorticoid consist of appearance of purpura (red discoloured spots) on the skin, changes in pigmentation, and abnormal hair growth. [14]
Some topical glucocorticoids can cause hypothalamic-pituitary axis (HPA) suppression. [15] Reasons that lead to suppression of the HPA include the use of high-potency glucocorticoids, long-term use, application to highly permeable areas, treatment of large areas, occlusion, changed skin barrier and young age. [15] Regular use of even mild glucocorticoids in young kids can lead to HPA suppression. [16]
Rarely, long-term application of high-potency topical glucocorticoids around the eyes may induce glaucoma or cataracts. [17] [18] [19]
The incorrect use of topical glucocorticoids can worsen or cover the typical clinical signs of the appearance of fungal skin infections. [20]
To reduce the risk of adverse events, high-potency glucocorticoid should not be applied on the face, intertriginous areas, areas with thin layers of skin (e.g. the perineum, armpit) in children. [21] [22] [23] Moreover, high-potency glucocorticoid should be applied to skin only once a day and should not be used for more than fourteen days. [24] Even low-potency topical glucocorticoids are able to cause adverse effects in children when used for prolonged periods of time.
Generally, a smaller dose of topical glucocorticoid is required by children for a given condition than adults, as children have relatively smaller body surface area compared to adults.
Based on the evidence that are currently available, the use of low- to medium-potency topical glucocorticoid is not found to raise the risk of adverse effects for the mother and the baby, such as preterm delivery, birth defects, and low birth weight. [25] [26] However, since the correlation between long-term use of potent topical glucocorticoid in pregnant women and low birth weight cannot be neglected, pregnant women who require topical glucocorticoids should be administered with low- or medium-potency agents instead of potent or superpotent ones. If potent or superpotent topical glucocorticids are necessary in pregnant women, they should only be administered for a short period of time, the dose used should also be minimised, and growth of the baby should be closely monitored. [25] [26]
Topical glucocorticoid causes cutaneous vasoconstriction in proportion with their potency. [27] With reference to the United States classification system, topical glucocorticoid can be classified into seven groups, with group 1 being the most potent and group 7 the least potent. [28]
Topical glucocorticoid phobia is a concern or fear about using topical glucocorticoids, which is commonly found among patients with atopic dermatitis and their caregivers. [29] This phenomenon has been identified in more than 15 countries globally, including Canada, France, Japan, the United Kingdom, and the United States. [30] The most prevalent causes for topical glucocorticoid phobia were found to be the concern regarding skin thinning as well as that regarding systemic absorption that could possibly affect growth and development. [30] [29] This phenomenon may be associated with low adherence to topical glucocorticoid therapies. [31] [30]
The extent of corticosteroid fears is independent of corticosteroid acceptability, but correlates with patients' quality of life. Desensitization of parental corticosteroid fears should be integral part of eczema education and therapeutics in order to improve therapeutic efficacy and patients' quality of life.<J Dermatolog Treat . 2015;26:418-25.> <Acta Paediatr . 2006;95:1451-5> <Drugs Context. 2018;7:212547>
Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones. Two main classes of corticosteroids, glucocorticoids and mineralocorticoids, are involved in a wide range of physiological processes, including stress response, immune response, and regulation of inflammation, carbohydrate metabolism, protein catabolism, blood electrolyte levels, and behavior.
Hydrocortisone is the name for the hormone cortisol when supplied as a medication. Uses include conditions such as adrenocortical insufficiency, adrenogenital syndrome, high blood calcium, thyroiditis, rheumatoid arthritis, dermatitis, asthma, and COPD. It is the treatment of choice for adrenocortical insufficiency. It can be given by mouth, topically, or by injection. Stopping treatment after long-term use should be done slowly.
Pimecrolimus is an immunomodulating agent of the calcineurin inhibitor class used in the treatment of atopic dermatitis (eczema). It is available as a topical cream, once marketed by Novartis under the trade name Elidel.
Clobetasol propionate is a corticosteroid used to treat skin conditions such as eczema, contact dermatitis, seborrheic dermatitis, and psoriasis. It is applied to the skin as a cream, ointment, or shampoo. Use should be short term and only if other weaker corticosteroids are not effective. Use is not recommended in rosacea or perioral dermatitis.
Triamcinolone is a glucocorticoid used to treat certain skin diseases, allergies, and rheumatic disorders among others. It is also used to prevent worsening of asthma and COPD. It can be taken in various ways including by mouth, injection into a muscle, and inhalation.
Betamethasone is a steroid medication. It is used for a number of diseases including rheumatic disorders such as rheumatoid arthritis and systemic lupus erythematosus, skin diseases such as dermatitis and psoriasis, allergic conditions such as asthma and angioedema, preterm labor to speed the development of the baby's lungs, Crohn's disease, cancers such as leukemia, and along with fludrocortisone for adrenocortical insufficiency, among others. It can be taken by mouth, injected into a muscle, or applied to the skin topically in cream, lotion, or liquid forms.
Desonide (INN) is a low-potency topical corticosteroid anti-inflammatory that has been available since the 1970s. It is primarily used to treat atopic dermatitis (eczema), seborrheic dermatitis, contact dermatitis and psoriasis in both adults and children. It has a fairly good safety profile and is available as a cream, ointment, lotion, and as a foam under the tradename Verdeso Foam. Other trade names for creams, lotions, and ointments include Tridesilon, DesOwen, Desonate. It is a group VI corticosteroid under US classification, the second least potent group.
Betamethasone dipropionate is a glucocorticoid steroid with anti-inflammatory and immunosuppressive abilities. It is applied as a topical cream, ointment, lotion or gel (Diprolene) to treat itching and other minor skin conditions such as eczema. Minor side effects include dry skin and mild, temporary stinging when applied. Betamethasone dipropionate is a "super high potency" corticosteroid used to treat inflammatory skin conditions such as dermatitis, eczema and psoriasis. It is a synthetic analog of the adrenal corticosteroids. Although its exact mechanism of action is not known, it is effective when applied topically to cortico-responsive inflammatory dermatoses. It is available as a generic medication.
Betamethasone valerate is a synthetic glucocorticoid ester. It is the 17-valerate ester of betamethasone. Betamethasone valerate is often used to treat mild eczema with good efficacy and lower incidence of steroid induced adverse effects due to its lower potency compared to other glucocorticoids. Betamethasone-17-valerate is available in cream, ointment, lotion, and foam preparations for topical use.
Triamcinolone acetonide is a synthetic corticosteroid medication used topically to treat various skin conditions, to relieve the discomfort of mouth sores, and intra-articularly by proceduralists to treat various joint conditions. It is also injected intralesionally to treat inflammation in some parts of the body, particularly the skin. In nasal spray form, it is used to treat allergic rhinitis. It is a more potent derivative of triamcinolone, and is about eight times as potent as prednisone. It is used for the treatment of macular edema associated with uveitis.
Calcipotriol, also known as calcipotriene, is a synthetic derivative of calcitriol, a form of vitamin D. It is used in the treatment of psoriasis. It is safe for long-term application in psoriatic skin conditions.
Diflorasone diacetate is a topical steroid that comes in the form of a cream. It is manufactured by E. Fougera & Co. and is used as an anti-inflammatory and anti-itching agent, like other topical corticosteroids. It is prescribed for psoriasis and atopic dermatitis, among other conditions. With respect to potency, it is regarded as a Class I corticosteroid [of classes I – VII] in the United States.
Amcinonide is a topical glucocorticoid used to treat itching, redness and swelling associated with several dermatologic conditions such as atopic dermatitis and allergic contact dermatitis. Amcinonide can also be classified as a multi-functional small molecule corticosteroid, which has been approved by the FDA and is currently marketed as an ointment, lotion, or cream. It acts as both a transcription factor for responses to glucocorticoids and modulator for other transcription factors while also regulating phospholipase A2 activity.
Halometasone is a potent synthetic tri-halogenated corticosteroid for topical application possessing pronounced anti-inflammatory, antiexudative, antiepidermoplastic, antiallergic, and antipruritic properties. It has been approved in many European countries including Spain, Germany, Switzerland, Austria, Netherlands, Belgium, and Portugal and other regions such as China, Hong Kong, Turkey, Israel, South Africa and India.
In medicine, a finger tip unit (FTU) is defined as the amount of ointment, cream or other semi-solid dosage form expressed from a tube with a 5 mm diameter nozzle, applied from the distal skin-crease to the tip of the index finger of an adult. The "distal skin-crease" is the skin crease over the joint nearest the end of the finger. One FTU is enough to treat an area of skin twice the size of the flat of an adult's hand with the fingers together, i.e. a "handprint". Two FTUs are approximately equivalent to 1 g of topical steroid.
Topical steroids are the topical forms of corticosteroids. Topical steroids are the most commonly prescribed topical medications for the treatment of rash, eczema, and dermatitis. Topical steroids have anti-inflammatory properties, and are classified based on their skin vasoconstrictive abilities. There are numerous topical steroid products. All the preparations in each class have the same anti-inflammatory properties, but essentially differ in base and price.
Calcipotriol/betamethasone dipropionate, sold under the brand name Taclonex among others, is a fixed-dose combination medication of the synthetic vitamin D3 analog calcipotriol (also known as calcipotriene) and the synthetic corticosteroid betamethasone dipropionate for the treatment of plaque psoriasis. It is used in the form of ointment, topical suspension, gel, aerosol, and foam.
Topical steroid withdrawal, also known as red burning skin and steroid dermatitis, has been reported in people who apply topical steroids for 2 weeks or longer and then discontinue use. Symptoms affect the skin and include redness, a burning sensation, and itchiness, which may then be followed by peeling.
Domoprednate is a synthetic glucocorticoid corticosteroid which was developed in the late 1970s and 1980s.
{{cite journal}}
: Cite journal requires |journal=
(help)