Actor Dennis Quaid and his wife, Kimberly Buffington, are convinced that miracles do happen.

Their twins, Boone and Zoe, are back home and in tiptop shape after being given an accidental overdose of Heparin while in hospital, People magazine is reporting.

The infants, who turn one month old on Saturday, were hospitalized at the Cedars Sinai Medical Center in Los Angeles on November 20 after the accidental overdose on November 18. The babies were given 1,000 times the recommended dose of Heparin, an anti-coagulant used to flush out IV lines and prevent blood clots.

"The twins are back home," the Quaid's lawyer, Susan E. Loggans confirms. "Their condition is fantastic, they're smiling. Zoe looks like her mom, and Boone looks like his dad. They've fully recovered from the accident and it's doubtful they'll suffer long-term effects from the overdose."

That's the best outcome anyone could possibly hope for. We are thrilled for the family.

Meanwhile, as we predicted when the story first broke, a lawsuit has been filed in the case.

The Quaids filed suit yesterday against the drug manufacturers, Baxter Healthcare Company. They are seeking $50,000 in damages for "continued suffering," specifically, financial losses and invasion of privacy. The lawsuit charges that Baxter failed to properly label vials of its product to make them distinguishable from each other.

The 10 units-per-millilitre vial of Heparin looks almost identical to the 10,000 units-per-millilitre vial, which resulted in the twins accidental overdose. The error was discovered only after the twins began to bleed spontaneously. Boone and Zoe were treated to reverse the effects of the drug.

"On a negligence scale of one to 10, Baxter Corporation gets a 10," Loggans maintains. She said Baxter "knew medication errors due to product labeling resulted in death but failed to recall the drug.”

Cedars Sinai chief medical officer Dr. Michael Langberg had apologized for the mistake, calling it a "preventable human error" and a "failure to follow our standard policies and procedures."

Loggans said the Quaids are still undecided about whether to sue the hospital. It's a shame Baxter didn't see it fit to do likewise. The drug company announced new labelling procedures "launched in October 2007" that were "designed to help reduce the risk of medication errors," according to eFluxMedia.

Baxter said Heparin is the first medication offered with a new, enhanced label.