The primary use of dextromethorphan is as a cough suppressant, for the temporary relief of cough caused by minor throat and bronchial irritation (such as commonly accompanies the flu and common cold), as well as those resulting from inhaled particle irritants.
As of Q4 2016, South Korea had the fastest average internet connection in the world at 26.1 Mbit/s according to the report State of the Internet published by Akamai Technologies. South Korea's speed is almost four times faster than the world average of 7.0 Mbit/s.
Why Does South Korea Have the Fastest Internet? South Korea already has the fastest internet in the world, and itâs about to get a lot faster, with commercial 5G connections (upwards of a gigabit per second, or an HD movie in about two minutes) predicted within the next six years.