The medication is approved for treating these infections only when they are caused by certain types of bacteria. Not all bacteria (and no viruses) will respond to Augmentin. Also, bacteria have different resistance patterns in different regions in the country. This means that some bacteria may be susceptible to Augmentin in certain parts of the country but not in others.
(Click Augmentin Uses for more information on what Augmentin is prescribed for, to learn about possible off-label uses for this drug, and to find out how it works.)