Lindsay Lohan's rehab could cost her hundreds of thousands of dollars

Lindsay Lohan's 30 day stay at Promises could cost her hundreds of thousands of dollars reports NYDN.

In addition to jeopardizing film roles, Lindsay Lohan could lose hundreds of thousands of dollars in sponsorships for her upcoming 21st birthday.

The first sponsor to back away was Svedka vodka.. Now other prospective partners, including Caesars Palace, the Social House restaurant at Treasure Island (in Las Vegas) and Pure nightclub, are wondering whether it makes sense for the star to head to Sin City straight out of rehab.

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Meanwhile, according to her estranged father, Lohan is suffering from multiple addictions that include alcohol and the powerful, highly addictive painkiller OxyContin reports MTV.

E! Online reported the news on Wednesday, quoting Michael Lohan, who said, "I spoke to the people treating Lindsay, because I wanted to make sure she was getting the right care ... And I'm satisfied they are doing the right thing for her, helping her detox from the painkillers and things. That's a very important step."

In other news, The New York Times is reporting that, the repeated bad behavior by Lohan might finally have dropped her off decision makers' short lists for upcoming film projects. An unidentified studio head told the paper he would not hire Lohan again until she proved herself to be healthy and reliable, and the paper speculated that to get work again, the "Georgia Rule" star might have to post her salary as a bond or pay for her own insurance to minimize studio risk.