1) history of cardiovascular disease, including myocardial infarction, history of percutaneous coronary angioplasty or stent, peripheral vascular disease or stroke; 2) history of myelodysplasia; 3) medications known to affect platelet function, including non-steroidal anti-inflammatory drugs, antihistamines, and selective serotonin reuptake inhibitors, during the 5 days prior to participation; 4) medications known to interact with colchicine; 5) history of intolerance to colchicine; 6) acute or chronic symptoms of diarrhea, nausea, or vomiting within 1 month prior to enrollment; 7) known anemia or hemoglobin <10mg/dL; 8) platelet count <100,000 or > 450,000; 9) creatinine clearance <30cc/minute; 10) any known hemorrhagic diathesis; 11) pregnant; 12) Unable to consent; or 13) Participating in a competing study.