The soft drinks giant reported that full-year pre-tax profit for the 52 weeks to 1 October fell to £36.5m from £64.2m the year before.
Total branded revenue for the year to 1 October was down 2.6% at £677.7m, while sales of fizzy drinks fell 6.8% to £332.5m.
However, sales of still drinks, including Robinsons squash, Fruit Shoot and Highland Spring, were up 2.4% to £321.7m for the year.
“Given the volatility in the carbonates market we remain cautious on the outlook for this category but we are confident that in the year ahead we will continue to make progress on margins,” said Paul Moody, chief executive of Britvic.
“Britvic is well placed to benefit from the continuing consumer trend towards health and well-being and our new brand and product innovations, scheduled for launch in the first half of 2007, remain focused on the growing still category,” he added.