(CNN) -- Two tainted lots of a generic version of a drug reportedly taken by Michael Jackson have been recalled by the drug maker. However, no link has been established between the drug -- a powerful sedative and anesthetic called propofol -- and the singer's death. "I have no way of knowing anything related to this specific product -- if it might have played a role or not played a role," said Dr. Arjun Srinivasan, the chief investigator on the recall for the Centers for Disease Control and Prevention. The agency is not involved in the investigation into Jackson's death, he said.
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NEW: DEA inquired about lot number not included in recall, spokesman says
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CDC says two lots of Diprivan's generic version tested positive for contaminant
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40 patients reported high fevers, muscle aches after taking generic version of drug
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FDA disputes online reports that recall and Michael Jackson's death could be related
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