Credit Suisse First Boston (CSFB) has helped Cadbury Schweppes, the UK food and drinks company, seal the $4.2bn (€4.2bn) acquisition of US rival Adams.

Cadbury Schweppes has used a variety of advisers including Goldman Sachs, Rothschild and Morgan Stanley, but has also been close to Schroder Salomon Smith Barney. CSFB has not worked for Cadbury Schweppes on a merger or acquisition, according to data from Dealogic, however the bank did work opposite the food and drinks company on two acquisitions last year.