Colchicine
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Colchicine is an alkaloid used to treat gout and Familial Mediterranean Fever as well as prevent major cardiovascular events.
Colchicine is an alkaloid used to treat gout and Familial Mediterranean Fever as well as prevent major cardiovascular events.
The exact mechanism of action of colchicine has not been fully established; however, colchicine likely interferes with the intracellular assembly of the inflammasome complex present in neutrophils and monocytes that mediates activation of interleukin-1β, an inflammatory mediator. Colchicine also attenuates neutrophil adhesion and recruitment, as well as superoxide production. Clinical data demonstrate that colchicine reduces high-sensitivity C- reactive protein (hs-CRP). Colchicine is an anti-mitotic drug that disrupts cytoskeletal functions by inhibiting β-tubulin polymerization into microtubules. Consequently, it prevents the activation, degranulation, and migration of neutrophils. This pharmacological action is thought to be related to colchicine ameliorating gout symptoms and preventing major cardiovascular events. Colchicine blocks microtubule growth at low concentrations and causes the depolymerization of microtubules at high concentrations.
Colchicine is indicated for the prophylaxis and treatment of gout flares. It is also indicated in Familial Mediterranean fever (FMF) in children and adults of four years of age and older. It is also indicated to reduce the risk of myocardial infarction (MI), stroke, coronary revascularization, and cardiovascular death in adult patients with established atherosclerotic disease or with multiple risk factors for cardiovascular disease. Some off-label uses of colchicine include the treatment of the manifestations of Behcet's syndrome, pericarditis, and postpericardiotomy syndrome.
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