n a novel claim testing the way that the $400 
            billion worldwide pharmaceutical industry is regulated, the New York 
            State attorney general, Eliot Spitzer, sued the British-based drug 
            giant GlaxoSmithKline 
            yesterday, accusing the company of fraud in concealing negative 
            information about its popular antidepressant medicine Paxil.
            The civil lawsuit, filed in State Supreme Court in Manhattan, 
            contends that GlaxoSmithKline engaged in persistent fraud by failing 
            to tell doctors that some studies of Paxil showed that the drug did 
            not work in adolescents and might even lead to suicidal thoughts. 
            Far from warning doctors, the suit contends, the company encouraged 
            them to prescribe the drug for youngsters.
            
            "The point of the lawsuit is to ensure that there is complete 
            information to doctors for making decisions in prescribing," Mr. 
            Spitzer said in an interview. "The record with Paxil, we believe, is 
            a powerful one that shows that GSK was making selective disclosures 
            and was not giving doctors the entirety of the evidence."
            GlaxoSmithKline officials issued a statement yesterday saying in 
            part that the company "has acted responsibly in conducting clinical 
            studies in pediatric patients and disseminating data from those 
            studies." 
            On Wall Street yesterday, the American depository receipts of 
            GlaxoSmithKline fell $1.38, or 3.2 percent, to $41.39.
            Mr. Spitzer filed his suit at a time that the tendency of many 
            drug companies to publicize only studies with positive results has 
            come under increasing criticism. 
            As he has done in actions involving the financial services and 
            mutual fund industries, Mr. Spitzer is entering regulatory terrain 
            that has been largely the preserve of the federal government, in 
            this case the Food and Drug Administration. This time, though, he 
            maintains that his suit is not a criticism of federal drug 
            regulators.
            "This isn't Harvey Pitt and the S.E.C.," he said, referring to 
            the former chief of the Securities and Exchange Commission, whom Mr. 
            Spitzer criticized as less than vigorous in enforcing federal 
            securities laws. Instead, Mr. Spitzer said that the F.D.A. had been 
            hamstrung by court rulings that have used free-speech arguments to 
            limit the agency's power to regulate what drug companies can say to 
            doctors. Such rulings do not limit his powers, Mr. Spitzer said.
            "You cannot invoke free-speech arguments as a defense to fraud," 
            he added. 
            Similar suits against other drug companies are likely, Mr. 
            Spitzer said. "This is an area that we're interested in," he said, 
            "and I think there are other cases out there that are 
analogous."
            A spokeswoman for the F.D.A. would not comment on the lawsuit but 
            noted that the agency required companies to submit all data related 
            to the safety of their drugs. Because so much drug company data 
            submitted is considered proprietary, it is up to the F.D.A. to 
            decide when to disclose possible public safety concerns. 
            That is what it did last year, when it warned doctors on the use 
            of Paxil for adolescents and children. Earlier this year, it 
            required antidepressant makers to strengthen suicide warnings on 
            labels.
            British drug regulators have banned the use of all but Prozac for 
            the treatment of depression in adolescents and children. Prozac, 
            made by Eli 
            Lilly & Company, received a major American endorsement this 
            week when the widely anticipated results of a study sponsored by the 
            National Institute of Mental Health indicated that Prozac was 
            superior to talk therapy alone or a placebo in treating depression 
            among teenagers. The study did not address suicide risks.
            Civil suits have been filed against Glaxo and some other makers 
            of antidepressants by patients or surviving relatives, contending 
            that the drugs caused violent or suicidal behavior. Some criminal 
            defendants have contended that violent acts were a result of using 
            the drugs. 
            Mr. Spitzer's lawsuit is part of a broad assault by prosecutors 
            on the drug industry's marketing practices. Last month, for example, 
            federal prosecutors in Boston announced a settlement with the 
            world's largest drug maker, Pfizer; 
            the company agreed to pay $430 million and to plead guilty to 
            charges that its Warner-Lambert unit promoted the drug Neurontin to 
            doctors for the treatment of conditions where no benefit had been 
            proved. 
            TAP Pharmaceuticals agreed to pay $800 million for inappropriate 
            marketing practices, and its former executives are facing federal 
            criminal charges in Boston. Schering-Plough 
            has acknowledged in regulatory filings that it is likely to be 
            indicted for improper marketing practices. Other companies are being 
            investigated. 
            At issue in most of these investigations, including Mr. Spitzer's 
            Paxil suit, is the marketing of approved drugs for off-label uses — 
            those not specifically approved by the F.D.A. While doctors are free 
            to prescribe an approved drug for any use, the manufacturers are 
            supposed to limit their marketing to those uses with F.D.A. 
            clearance.
            The new wrinkle in Mr. Spitzer's suit is his argument that a drug 
            maker is committing fraud if it does not tell doctors about trials 
            of a medication that raise safety concerns.