Anyone know what this mixture is like in terms of effects? It's a popular cocktail in Thailand and Ive got all the ingredients

Fresh Kratom
Dextromephorphan syrup (DXM)
Coca Cola

It's hot and sticky like a sumo wrestler's ball sack in London and only gonna get hotter as time goes on (for any foreigner who thinks it's always cold and rainy here it aint the case) and this sounds like a tasty refresher