I have drank enough of the viper rum to qualify as an authority. At least by Belize standards. Maruba sells it when they have ample supply. It is primarily for the resort's use. There is actually medical advantages to drinking it, according to studies done by the Chinese. They found that the venom of the snake, when consumed in small quantities, helps to prevent strokes and helps with ailments like arthritis. The snake must be a viper and must be put into the bottle while still alive. This ensures that the snake injest the rum into it and then it is slowly released into the rum, sort of in an osmossis way. So, they can only produce the rum based on the amount of snakes they are able to get.
This is "for true,mon". In "backra" language, I learned that word from the book Marty recommended, it means "no shit".
Now how about a country where it is illegal for me to work and I get healthy drinking bottles of rum with snakes in it? What a country!!!