This is another example of a tiny number of irresponsible people imposing a lot of inconvenience on millions of others.  The Associated Press reports in this Forbes article that four East Coast supermarket chains will only sell products containing dextromethorphan (DXM) to customers over 18 years of age.  DXM is a cough suppressant and is very common in over-the-counter cough remedies.  I recommend it all the ...