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CASE REPORTS
CLINICAL TRIAL
JOURNAL ARTICLE
Probable colchicine-induced neutropenia not related to intentional overdose.
Annals of Pharmacotherapy 2001 Februrary
OBJECTIVE: To report a case of neutropenia caused by colchicine not associated with intentional overdose or with preceding severe gastrointestinal symptoms.
CASE SUMMARY: A 68-year-old white man was admitted to the hospital with intractable pain from an acute attack of gout. The patient was treated with standard doses of oral colchicine for several days. He experienced mild loose stools, but no severe diarrhea or nausea during treatment. The patient then developed severe neutropenia, with an absolute neutrophil count of 240 cells/mm3. His white blood cell count returned to normal after discontinuing colchicine and administering filgrastim.
DISCUSSION: Although colchicine is commonly associated with neutropenia in cases of intentional or accidental overdose, the patient developed this adverse effect after being treated with doses commonly used for the acute treatment of gout. In addition, this patient had taken low-dose colchicine for many years without experiencing hematologic adverse effects.
CONCLUSIONS: Colchicine is often an attractive alternative to nonsteroidal antiinflammatory agents for the treatment of gout, especially in patients at risk for renal impairment or gastropathy. Our case illustrates that colchicine treatment can cause hematologic adverse effects; the clinician should monitor cell counts in patients receiving this agent, especially at the higher doses used for acute treatment of gout.
CASE SUMMARY: A 68-year-old white man was admitted to the hospital with intractable pain from an acute attack of gout. The patient was treated with standard doses of oral colchicine for several days. He experienced mild loose stools, but no severe diarrhea or nausea during treatment. The patient then developed severe neutropenia, with an absolute neutrophil count of 240 cells/mm3. His white blood cell count returned to normal after discontinuing colchicine and administering filgrastim.
DISCUSSION: Although colchicine is commonly associated with neutropenia in cases of intentional or accidental overdose, the patient developed this adverse effect after being treated with doses commonly used for the acute treatment of gout. In addition, this patient had taken low-dose colchicine for many years without experiencing hematologic adverse effects.
CONCLUSIONS: Colchicine is often an attractive alternative to nonsteroidal antiinflammatory agents for the treatment of gout, especially in patients at risk for renal impairment or gastropathy. Our case illustrates that colchicine treatment can cause hematologic adverse effects; the clinician should monitor cell counts in patients receiving this agent, especially at the higher doses used for acute treatment of gout.
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