What goes hand in hand with the upcoming Carnival festivities? Actually making it out of the bed the next day. Most who have spent any time in Brazil have had at least one night where they drank one too many caipirinhas. But for decades now, there has been a solution many locals swear by: Engov. This over-the-counter drug was designed for headache and allergy relief, but it has become the de facto hangover-prevention method for Brazilians. Take one before you have your first drink plus another before bed, and they say it will ensure that the next-day pain never outweighs the fun from the night before.