As she still copes with her boyfriend's unexpected death from a drug overdose in July, Glee's Lea Michele reportedly reached out to a former co-star whose had recent struggles with drugs.

Enstars reported in September that actor Zac Efron had finished a stint in rehab earlier in 2013 for a cocaine addiction. On Sept. 27 he thanked fans for their support during the difficult time and said he is now focusing on his career.

Michele, whose late boyfriend and Glee co-star Cory Monteith died on July 13 after being found unconsious in his Vancouver hotel room, recently got in touch with Efron, her co-star in New Year's Eve, after his rehab stint was revealed to the public and vowed to help him stay sober.

"Lea called Zac and told him, 'I'm here if you need me.' She urged him to get serious about having a 24-hour sobriety coach and to only spend time with people who care about his welfare," a source told Channel 24. "Lea must feel sad that she wasn't able to prevent Cory from relapsing. She knows Zac well and would hate to see him go down the same path."

The unnamed source also said that Efron has accepted Michele's help willingly.

"Zac was really glad to hear from her. They have plans to go on a yoga outing together in LA later this year and he promised to discuss his state of mind with her weekly by phone or email," the insider said.

An autopsy revealed Monteith died from a mixed toxicity of heroin and alcohol. Glee will air a special tribute episode dedicated to him on Thursday, which will also end the arc for his character Finn Hudson, who will die on the show.