I've been trying to find this soda in the supermarket. No luck. It seems as if it's only available at certain cafes and fornos (bakeries).
For what I can tell there is a Slow Food connection, the soda was created in 2008 and the lemons comes from the beautiful Amalfi coast.
This drink is delicious. It's very refreshing and light. It reminds me of a less syrupy Sprite.
If anyone has info on this drink, please share. Grazie.