Indication |
For the relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses. |
Pharmacodynamics |
Alclometasone is a synthetic corticosteroid for topical
dermatologic use. The corticosteroids constitute a class of primarily
synthetic steroids used topically as anti-inflammatory and antipruritic
agents. Alclometasone is a selective glucocorticoid receptor agonist. |
Mechanism of action |
The mechanism of the anti-inflammatory activity of the topical
steroids, in general, is unclear. However, corticosteroids are thought
to act by the induction of phospholipase A2 inhibitory
proteins, collectively called lipocortins. It is postulated that these
proteins control the biosynthesis of potent mediators of inflammation
such as prostaglandins and leukotrienes by inhibiting the release of
their common precursor, arachidonic acid. Arachidonic acid is released
from membrane phospholipids by phospholipase A2.
Alclometasone initially binds the corticosteroid receptor. This complex
migrates to the nucleus where it binds to different glucocorticoid
response elements on the DNA. This in turn enhances and represses
various genes, especially those involved in inflammatory pathways. |
Absorption |
Topical corticosteroids can be absorbed from normal intact skin.
Studies have shown that approximately 3% of steroid is absorbed during 8
hours of contact with intact skin of normal volunteers. |
Volume of distribution |
Not Available |
Protein binding |
Not Available |
Metabolism |
Hepatic. |
Route of elimination |
Not Available |
Half life |
Not Available |
Clearance |
Not Available |
Toxicity |
Symptoms of overdose include suppression of adrenal glands,
temporary decrease in white blood cell counts, symptoms of
hypersensitivity (such as skin rash, hives, itching, and difficulty
breathing), and increased susceptibility to infection. |