• BREAKING NEWS ABC shows live and on-demand -- Download the WATCH ABC app!

OTRC: Michael Jackson's dermatologist Arnold Klein sued for fueling addiction

In this Nov. 8, 2007 file photo, pop star Michael Jackson poses on the red carpet during the RainbowPUSH Coalition Los Angeles 10th annual awards in Los Angeles./ Dr. Arnold Klein arrives at Elizabeth Taylor's Diamond Jubilee Birthday February 27, 2007 in Henderson, Nev. Klein tells CNN's "Larry King Live" Wednesday July 8, 2009 that Demerol was the strongest drug he prescribed Jackson and doesn't know how he got Diprivan, usually administered by anesthesiologists in hospitals. (AP Photo/Danny Moloshok / Tammie Arroyo)

A lawsuit has been filed against another one of Michael Jackson's doctors, this time against his dermatologist, Dr. Arnold Klein.

Klein's former assistant Jason Pfeiffer filed the lawsuit, which accuses Klein of fueling the singer's addiction by providing him with muscle relaxers and narcotics and getting him "too drugged up and disoriented to stand on his own," according to the legal papers obtained by OnTheRedCarpet.com.

Pfeiffer said that he and Klein's own nurses were concerned that Jackson was being "overmedicated" by Klein and when he voiced his opinion, was told to "keep his mouth shut."

Pfeiffer stated in the legal documents that Michael Jackson asked for a doctor's note to "get out of a court appearance" in October 2008 and Klein issued a note claiming that the singer suffered from a Staph infection and fabricated a test.

There was also a claim made that Klein tried to give Jackson prescription muscle relaxers in 2009 by writing a prescription in Pfeiffer's name. The documents state that this was a common practice and Klein wrote prescriptions for amyl nitrate, Percocet, Cialis, Phentermine and Levitra in Pfeiffer's name, for his own consumption as well as for other patients.

Pfeiffer is suing the dermatologist for wrongful termination, hour and wage violations, sexual harassment and creating a hostile work environment, among other things.

The legal documents mention that Klein required Pfeiffer to help him find sexual partners and to prepare for sexual encounters with "masseurs, paid escorts and prostitutes" and "required that Pfeiffer wash Klein's groin." Pfeiffer also recounted an instance where he was asked to obtain homeless men for his former employer to have sex with.

Pfeiffer said he suffers from emotional problems as a result from Klein's alleged abuse and is suing him for unspecified damages.

Klein is considered the father of modern cosmetic dermatology and developed modern injection techniques for Botox, Collagen and Restylane.

Jackson died at age 50 on June 25, 2009 in his Los Angeles home from an overdose of the anesthetic propofol and two other sedatives that were prescribed by Dr. Conrad Murray. His death was classified as a homicide.

The trial for Murray, the doctor charged with involuntary manslaughter in Michael Jackson's death, was recently delayed until September. Murray has pleaded not guilty and faces up to four years in prison if convicted.

In his own legal documents, Murray accused Klein of getting Jackson addicted to Demerol, a narcotic which he reportedly gave the singer 51 injections in the three months before Jackson's death.

Klein admitted on CNN's "Larry King Live" in July 2009 that he had prescribed the singer Demerol, but denied that Jackson was "riddled with needle marks." On the talk show, Klein also dodged questions about his donated sperm and whether he was the biological father of Jackson's kids.

Klein's attorney, Mira Hashmall, denied the claims.

"Jason Pfeiffer's allegations are scurrilous and false. His claims lack merit and will be proven baseless in court," Hashmall said in a statement.

There was no immediate comment from the Jackson family.

(Copyright ©2018 OnTheRedCarpet.com. All Rights Reserved.)