Jim Carrey’s ex-girlfriend, Cathriona White, committed suicide last week using drugs prescribed to the troubled comedian, TMZ reported.

The 28-year-old Irish makeup artist, who split from Carrey, 53, shortly before her death, overdosed on three medications — the empty bottles of which were found at her bedside in her LA home.

The painkiller Percocet, sleep aid Ambien and blood-pressure medication Propranolol were all prescribed by one doctor to a fictitious male.

Click here to subscribe to FOX411’s YouTube channel

Authorities confirmed that the name is an alias of Carrey. It is unknown which alias was used.

On Thursday, journalist Tony Ortega wrote on his blog The Underground Bunker that White had been studying Scientology.

He claimed White had stalled in a course called the Survival Rundown that can take “hundreds of hours to complete,” and that it may have played a role in her death. A rep for the controversial church denied these claims.

Click here to read more in the New York Post.