The Hyderabad-based Shantha Biotechnics Private Limited (SBPL) has threatened to take drug ginat SmithKline Beecham (SB) to court for indulging in a 'smear campaign' against its new hepatitis vaccine. The company has accused SB of internationally launching a "vilification campaign" aimed at damaging the reputation of "shanvac-B, a product developed and produced in India by Indian scientists."