It can be used to reduce weight amongst athletes. In sports where weight is a factor in competing or where having a lower weight may create an advantage (boxing, weightlifting, skating etc). As Furosemide causes increased urine production it can be used to flush the system of other Prohibited Substances prior to a doping control test. To this point, the Operation Refuge investigation found that Furosemide is always detected alone (no other substances are detected).