Displaying 5 results of Oxandrolone Impurities Oxandrolone impurities are unwanted substances that can be found in samples of Oxandrolone, a popular steroid used for medical purposes such as treating muscle wasting and osteoporosis. These impurities can have negative effects on the body, including toxicity and reduced effectiveness of the drug. It is important to test for and remove these impurities to ensure the safety and efficacy of Oxandrolone.