TRENTON, N.J. AP _ The makers of popular cholesterol drugs Vytorin and Zetia are being sued in states across the country over allegations that Merck & Co. and Schering-Plough Corp. misled consumers into thinking the drugs were more effective than generic ones.

Lawsuits have been filed in federal courts in states including California, Florida, Louisiana, Minnesota, Mississippi, New Jersey, New York and Ohio, according to court documents and interviews with attorneys. The consumer fraud suits, which all seek class-action status, were filed on behalf of patients and medical insurers who paid for the expensive cholesterol drugs.