The cola began as a syrupy "water-based kava extract" developed by Australian-born James Armitage in 2009.
He then successfully approached Vanuatu Beverage to suggest blending it with cola.
The watery kava syrup is "added to cola in a proportion of 15 millilitres to a bottle of 330 ml".
The drink is now produced in a factory on the outskirts of Port Vila, the country's capital.
[2] Lava Cola contains a kavalactone additive, kava consumption being traditionally important in western Pacific nations.