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Entertainment Tonight -- Oprah Winfrey and Dr. Mehmet Oz are reportedly suing 30 companies, alleging that their products are being sold under false recommendations made by the talk show host and the Columbia University Medical Center doctor.

The lawsuit was filed in a U.S. District Court in New York City on Wednesday and claims these companies -- selling dietary supplements, anti-wrinkle creams, tooth whitening and colon cleansers -- were fabricating quotes from Winfrey and Dr. Oz, in addition to falsely endorsing in the voice of the TV personalities about the brands and products, The Wall Street Journal reports.

"Plaintiffs seek to stop the unauthorized and unlawful use of Dr. Oz's and Ms. Winfrey's names, pictures, voices and identities," the lawsuit reads, according to The WSJ.

Dr. Oz was a regular guest on Oprah's show and will be debuting his own program, "The Dr. Oz Show," on FOX, September 14.

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