Andreas Lubitz, who is believed to have deliberately crashed Flight 9525, also told a doctor he had insomnia, according to a report.
The recommendations come in the wake of the Germanwings disaster that killed 150 people in March.
The findings reportedly give rise to speculation that the 27-year-old pilot may have considered other means of committing suicide.
A French prosecutor said doctors in the weeks leading up to the deadly crash had reservations about Andreas Lubitz's psychological state and ability to fly.
A lawyer for some of the families said that this would provide "closure" to the relatives of the victims.
Authorities have said they believe Lubitz, a 27-year-old with 630 hours of flying experience, destroyed Germanwings Flight 9525 on purpose, killing all 150 people on board.
The BEA report cited cockpit data to reveal co-pilot Andreas Lubitz had rehearsed a controlled descent on a previous flight.
The Germanwings co-pilot suspected of deliberately crashing a plane in the French Alps in March, killing all 150 people on board, practiced a descent on the previous flight, Bild newspaper said.
Lufthansa recently earmarked $300 million to cover the costs of the March 24 crash.
Lubitz researched diuretic drugs online before he reportedly locked flight captain Patrick Sondenheimer out of the cockpit and crashed the plane on March 24.
Lufthansa said Monday that it didn't have to report Andreas Lubitz's past depressive episode, given new regulations in 2013.
A European regulator found that the agency lacked staff, likely limiting its ability to carry out checks on planes and crew.
The flight was bound from Hanover, Germany, to Rome when it made an unscheduled stop in Venice.
The two airlines have been longtime partners in the Star Alliance.
French investigators said that the pilot used the autopilot feature to descend the plane and kept adjusting the controls to speed up the plane’s fall.
Body parts from all 150 passengers and crew of the Germanwings plane have been found, but many body parts still have to be identified.
Germanwings Flight 9525 crashed March 24 in the French Alps en route from Barcelona, Spain to Düsseldorf, Germany.
Meanwhile, the second black box was unearthed from the wreckage after nine days of searching. The voice recorder is being examined.
Federal drug information warns that patients receiving lorazepam should not operate dangerous machinery or motor vehicles.
The 27-year-old reportedly told doctors that he was on sick leave when he went to them to seek help for an eye condition.
A website for aviation enthusiasts, FlightRadar24.com, captured data that shows the autopilot was reset to initiate a steep decline.
Senior executives of Lufthansa, Germanwings' parent company, visited the crash site of Flight 9525 in the French Alps on Wednesday.