Cadbury-Schweppes subsidiary has filed a lawsuit against PepsiCo for anti-competitive behavior. PepsiCo and Cadbury Schweppes appear to be heading for a soft drinks war in the US. Cadbury alleges that PepsiCo is unfairly offering restaurant chain Tricon lower prices if it stocks PepsiCo brands exclusively, in the hope of squeezing out Cadbury's Seven Up brand.