<p>Epidemiological studies have associated the use of combined OCs with an increased incidence of venous thromboembolism (VTE, deep venous thrombosis and pulmonary embolism). It is unclear whether desogestrel used alone carries the same risk. Discontinue in the event of a thrombosis. Consider stopping prior to long term immobilization due to surgery or illness. Benefit/risk assessment should be made in women with liver cancer. Caution patients with a history of thromboembolic disorders. Patients with diabetes should be carefully monitored. Effects on bone density are unknown.</p>