Just two weeks after their newborn twins were given an overdose of the blood thinner Heparin, Dennis Quaid and his wife Kimberly are suing the drug’s manufacturer, according to court documents filed in Cook County, Ill.

Seeking $50,000 in damages, the lawsuit claims Baxter Healthcare Corporation, which makes Heparin, failed to properly label vials of the product, making it difficult to differentiate between the 10-units-per-milliliter vial and the 10,000-units-per-milliliter. The lawsuit also claims the drug company knew about several previous dosage mix-ups, but failed to recall the product or notify hospitals of the potential dangers.

On Nov. 18, the newborn twins, Thomas Boone and Zoe Grace, were accidentally given 1,000 times the recommended dose of Heparin.

Luckily, the babies have recovered and are home from the hospital. “It’s doubtful they’ll suffer long-term effects from the overdose,” the Quaid’s lawyer said Tuesday.