Michael Lohan has stepped up his campaign to save his daughter Lindsay - revealing she buys prescription drugs from one of Hollywood's biggest dealers.

Lohan shocked his daughter's fans by alleging the Mean Girls star is addicted to pills, and has become a shadow of her former self. He recently told reporters he fears she is heading for an early grave like tragic superstars Michael Jackson and Heath Ledger.

He said, "I'm going to get her off the prescription drugs that she's on... When you hug her she's like, vacant inside. When she kisses or holds me I get chills, and not in a good way - in a bad way. She's a different person."

Now, the worried father reveals he fears Lindsay's alleged habit is being fueled by a drug dealer who dishes out narcotics to other big Hollywood names.

He tells RadarOnline.com, "This guy follows Lindsay all over the place. All over. Lindsay pays for him to go everywhere. He has no job. No job. He does nothing. All he does is supply everyone in L.A."

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(This news article provided by World Entertainment News Network)