Schweppes Slimline Tonic Water is a sugar-free version of the classic Indian Tonic Water, made with the same quality and flavour of its original counterpart, using high-quality carbonated water and all-natural cold-pressed citric oils. Schweppes Slimline Tonic Water is a versatile and healthier thirst-quencher. Perfect serve – Enjoyable both chilled on its own, or mixed with a premium gin for a slimline G&T.