Here is the full context of this from another article, in which it specifies that it was the drug company themselves that petitioned the FDA to withdraw the its approval for Oxandrolone, as related to osteoporosis.
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On June 28, 2023, the FDA published their final approval of Gemini US’s voluntary withdrawal request of NDA for OXANDRIN (oxandrolone) tablets) tablets, 2.5 milligrams (mg) and 10 mg.. FDA is also withdrawing approval of four abbreviated new drug applications for Oxandrolone from Upsher-Smith Laboratories, LLC (Upsher-Smith), Par Pharmaceutical, Inc. (Par), and Sandoz Inc. (Sandoz).
Background: Oxandrin was approved by the FDA in 1964 to relieve bone pain in osteoporosis. However, in 1984 an FDA advisory committee concluded there was no evidence of efficacy for tablets.
Additionally, as communicated in the product labeling, multiple safety warnings and precautions have been associated with the use of oxandrolone tablets. These include pelosis hepatitis, sometimes associated with liver failure and intra-abdominal hemorrhage; live cell tumors, sometimes fatal; and blood lipid changes that are associated with increased risk of atherosclerosis. Other warnings have been related to risks of cholestatic hepatitis, hypercalcemia in patients with breast cancer, and increased risk for the development of prostatic carcinoma and prostatic hypertrophy in geriatric patients.
In December of 2022, Gemini requested a voluntary withdrawal of their approved FDA application. Based on FDA's review of currently available data and information regarding the safety and effectiveness of oxandrolone tablets, the Agency believes that the potential problems associated with oxandrolone tablets are sufficiently serious that the drug should be removed from the market