The new products, hitting shelves this week, contain four packs of gum (rsp: £1.19) and are available in peppermint and spearmint.
Since launch last September, the range has clocked up sales of £6.4m [Kantar Worldpanel to 18 April 2010], and Cadbury claimed that 47% of spend on Trebor gum was incremental to the gum category.
"The popularity of the single has already been phenomenal and we're sure the multipack will perform in a similar way," said Susan Nash of Cadbury trade communications. "It has performed consistently well, exceeding targets set in September 2009."
At launch, Cadbury predicted the Trebor extension would plug a gap for a gum that would appeal to consumers who were aged 35 and over.