Id Reaction (Autoeczematization) Medication
- Author: Matthew P Evans, MD; Chief Editor: Dirk M Elston, MD more...
Medication Summary
The goals of pharmacotherapy are to reduce morbidity and to prevent complications.
Corticosteroids
Class Summary
Help lesion resolution and provide symptomatic relief of pruritus. The strength and administration of a topical corticosteroid should be chosen based upon the extent, location, and morphology of the eruption. Systemic corticosteroids may be used for severe or refractory eruptions.
Amcinonide (Cyclocort)
Suppresses mitotic activity and causes vasoconstriction. Stimulates synthesis of enzymes needed to decrease inflammation.
Fluocinonide (Fluonex, Lidex)
High-potency steroid that inhibits cell proliferation. Is immunosuppressive, antiproliferative, and anti-inflammatory. Also has antipruritic and vasoconstrictive properties.
Prednisone (Orasone, Sterapred, Deltasone)
Commonly used oral agent. Indicated for severe, prolonged, or anaphylactic reactions. Decrease late immune-mediated complications. Must be metabolized to the active metabolite prednisolone for effect. Conversion may be impaired in liver disease.
Methylprednisolone (Depo-Medrol, Medrol, Adlone, Solu-Medrol)
May decrease inflammation by reversing increased capillary permeability and suppressing PMN activity. Indicated for severe, prolonged, or anaphylactic reactions. Decrease late immune-mediated complications.
Antihistamines
Class Summary
These agents relieve pruritus. May control itching by blocking effects of endogenously released histamine.
Diphenhydramine (Benadryl, Benylin, Caladryl, Dermapax)
First-generation antihistamine with anticholinergic effects that binds to H1 receptors in the CNS and the body.
Competitively blocks histamine from binding to H1 receptors. Has significant antimuscarinic activity and penetrates CNS, which causes pronounced tendency to induce sedation. Approximately half of those treated with conventional doses experience some degree of somnolence. A small percentage of children paradoxically respond to diphenhydramine with agitation.
For symptomatic relief of symptoms caused by release of histamine in allergic reactions.
Loratadine (Claritin, Alavert)
Selectively inhibits peripheral histamine H1 receptors. Tolerated well, with rate of sedation not significantly different from placebo.
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