By Kate Ward
Updated May 25, 2010 at 10:28 PM EDT

Dennis Quaid has filed a lawsuit against Heparin, the blood-thinner that threatened the lives of his twins in 2007, thanks to an accidental overdose. According to Reuters, the suit alleges “the overdose was due to a mix-up over similar labeling in different doses of Heparin.” (The twins were given 10,000 units of the drug rather than 10 of their prescribed Hep-Lock.) Quaid’s twins spent time in intensive care due to the mix-up. Baxter International Inc. did not immediately return EW’s calls for comment.

UPDATE: Baxter has issued the following response to the lawsuit: “While the medication errors that occurred involving the Quaid children are extremely unfortunate, investigations by the hospital and the California Department of Public Health determined that this was a preventable error — as a result of not reading the label. We believe both Baxter and the Quaids have a common interest in reducing medication errors. We feel that working together to address this issue would be more productive than continuing to litigate this matter in the courts.”