On Friday, the Pinellas County Medical examiner released Halladay's autopsy report, obtained by TMZ sports.
The tail section of an ICON A5 ultralight airplane lay on a roadway near a boat ramp in the Gulf Harbors neighborhood of New Port Richey, Fla., on Wednesday, Nov. 8, 2017.
Halladay was killed in Holiday in November of a year ago.
The toxicology report also said Halladay had "had zolpidem (the generic name for Ambien), as well as morphine in his system at the time of the crash", per TMZ.
Deadly storm Friederike calms after claiming 8 lives in Germany
Dozens of flights were cancelled in Dusseldorf and all long-distance train service across the country was suspended. Regional trains were also halted across northern and eastern Germany and some other areas, it said in a statement.
His blood-alcohol level at the time of the crash was 0.01, according to the Tampa Bay Times. TMZ reported that he had 72 ng/nl in his system.
An autopsy on former MLB All-Star Roy Halladay determined his cause of death to be blunt trauma, with drowning also being a contributing factor.
Any amount over 50 ng/ml of the drug "appears capable of impairing driving to a degree that increases the risk of a motor vehicle accident", according to the FDA's website. A preliminary National Transportation Safety Board report on the crash said that Halladay flew very close to homes and the surface of the Gulf of Mexico shortly before crashing November 7.
Halladay was a two-time victor of the Cy Young Award given to the best pitchers in the league during his 16-year MLB career.