Betamethasone¿¡ ´ëÇÑ Mechanism_Of_Action Á¤º¸ Betamethasone is a glucocorticoid receptor agonist. The antiinflammatory actions of corticosteroids are thought to involve lipocortins, phospholipase A2 inhibitory proteins which, through inhibition arachidonic acid, control the biosynthesis of prostaglandins and leukotrienes. The immune system is suppressed by corticosteroids due to a decrease in the function of the lymphatic system, a reduction in immunoglobulin and complement concentrations, the precipitation of lymphocytopenia, and interference with antigen-antibody binding. Betamethasone binds to plasma transcortin, and it becomes active when it is not bound to transcortin.
Pharmacology
Betamethasone¿¡ ´ëÇÑ Pharmacology Á¤º¸ Betamethasone and its derivatives, betamethasone sodium phosphate and betamethasone acetate, are synthetic glucocorticoids. Used for its antiinflammatory or immunosuppressive properties, betamethasone is combined with a mineralocorticoid to manage adrenal insufficiency and is used in the form of betamethasone benzoate, betamethasone dipropionate, or betamethasone valerate for the treatment of inflammation due to corticosteroid-responsive dermatoses. Betamethasone and clotrimazole are used together to treat cutaneous tinea infections.
Betamethasone¿¡ ´ëÇÑ Toxicity Á¤º¸ Symptoms of overdose include burning, itching, irritation, dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, maceration of the skin, secondary infection, skin atrophy, striae, and miliaria.
Drug Interactions
Betamethasone¿¡ ´ëÇÑ Drug_Interactions Á¤º¸ Ambenonium The corticosteroid decreases the effect of anticholinesterasesEdrophonium The corticosteroid decreases the effect of anticholinesterasesPyridostigmine The corticosteroid decreases the effect of anticholinesterasesAnisindione The corticosteroid alters the anticoagulant effectDicumarol The corticosteroid alters the anticoagulant effectAcenocoumarol The corticosteroid alters the anticoagulant effectWarfarin The corticosteroid alters the anticoagulant effectAspirin The corticosteroid decreases the effect of salicylatesBismuth Subsalicylate The corticosteroid decreases the effect of salicylatesAmobarbital The barbiturate decreases the effect of the corticosteroid Aprobarbital The barbiturate decreases the effect of the corticosteroidButalbital The barbiturate decreases the effect of the corticosteroidButabarbital The barbiturate decreases the effect of the corticosteroidButethal The barbiturate decreases the effect of the corticosteroidDihydroquinidine barbiturate The barbiturate decreases the effect of the corticosteroidHeptabarbital The barbiturate decreases the effect of the corticosteroidHexobarbital The barbiturate decreases the effect of the corticosteroidMethohexital The barbiturate decreases the effect of the corticosteroidMethylphenobarbital The barbiturate decreases the effect of the corticosteroidPentobarbital The barbiturate decreases the effect of the corticosteroidPhenobarbital The barbiturate decreases the effect of the corticosteroidPrimidone The barbiturate decreases the effect of the corticosteroidQuinidine barbiturate The barbiturate decreases the effect of the corticosteroidSecobarbital The barbiturate decreases the effect of the corticosteroidTalbutal The barbiturate decreases the effect of the corticosteroidEthotoin The enzyme inducer decreases the effect of the corticosteroidFosphenytoin The enzyme inducer decreases the effect of the corticosteroidMephenytoin The enzyme inducer decreases the effect of the corticosteroidPhenytoin The enzyme inducer decreases the effect of the corticosteroidRifampin The enzyme inducer decreases the effect of the corticosteroidMidodrine Increased arterial pressureSalicylate-magnesium The corticosteroid decreases the effect of salicylatesSalicylate-sodium The corticosteroid decreases the effect of salicylatesSalsalate The corticosteroid decreases the effect of salicylatesTrisalicylate-choline The corticosteroid decreases the effect of salicylates
Betamethasone¿¡ ´ëÇÑ Description Á¤º¸ A glucocorticoid given orally, parenterally, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. Its lack of mineralocorticoid properties makes betamethasone particularly suitable for treating cerebral edema and congenital adrenal hyperplasia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p724)
The database contains the following fields: The generic name of each chemical For module A10 (liver enzyme composite module): Overall activity category for each compound (A for active, M for marginally active, or I for inactive) based on the number of active and marginally active scores for each compound at the five individual endpoints (see research article for full description of method) Number of endpoints at which each compound is marginally active (M) Number of endpoints at which each compound is active (A) For modules A11 to A15 (alkaline phosphatase increased, SGOT increased, SGPT increased, LDH increased, and GGT increased, respectively): Overall activity category for each compound (A for active, M for marginally active, or I for inactive) based on the RI and ADR values (see the research article for full description of method) Number of ADR reports for each compound, given as <4 or ¡Ã4 Reporting Index value for each compound, except where no shipping units were available (NSU) Group 1 comprises of compounds for which ADR data were available for the first five years of marketing, so when no ADR reports were listed during this period the compounds were evaluated as inactive. Group 2 comprises of compounds for which a 'steady state' period of ADR data were available (1992-1996). In cases where no ADR reports were filed during this period, the compounds were scored as 'NA' (data not available) since they may have had one or more ADR reports during their first five years of marketing which should not be negated by a lack of ADR reports during the steady-state period. BETAMETHASONE [GGT Increase] [Composite Activity] (Score) NA (Marginal) 0 (Active) 0
[Alkaline Phosphatase Increase] (Activity Score) NA (Number of Rpts) NA (Index value) NA
[SGOT Increase] (Activity Score) NA (Number of Rpts) NA (Index value) NA
[SGPT Increase] (Activity Score) NA (Number of Rpts) NA (Index value) NA
[LDH Increase] (Activity Score) NA (Number of Rpts) NA (Index value) NA
[GGT Increase] (Activity Score) NA (Number of Rpts) NA (Index value) NA