Medicinal rurou thuoc ("snake wine," top) is a rice wine or distilled grain alcohol in which as the name implies a snake - preferably venemous - is soaked. The alcohol supposedly neitralizes the poison, and it´s said to be a most reinvigorating elixir. Other animals are used, too, such as geckos, scorpions, seahorses, and bear´s claws or testicles. Foreign visitors can often find it intimidating but the adventurous will have quite the tale to tell - and of course a cool accompanying selfie!:
It´s one of Tripatini contributor Adventure Journey´s 10 of the Coolest Experiences You Can Have in Vietnam.