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.
Here are the top 10 global cities with super fast internet. #1: Seoul, South Korea Seoul is the capital of South Korea and it is well known to have the worldâs fastest internet speed. South Korea is technologically one of the most advanced countries in the world, so it is no surprise the Seoul ranks so highly.