The Food and Drug Administration recently announced that Avandia will be pulled from retail pharmacy shelves due to the diabetes drug’s cardiovascular threat to patients.

Starting Nov. 18, only certified doctors will be able to prescribe the drug, and only to patients who have been alerted to the risks, who have already taken the drug safely, and who have found that other medications did not control their diabetes. These patients can obtain Avandia through mail-order pharmacies.