"this works well for me if i take it with aspirin and tylenol. by itself, it does little - it would not be worth getting.  it also helps with sinus and/or migraines, again, only coupling it with aspirin and tylenol.  i have never had any of the &quot;interesting&quot; side effects that people describe, nor addiction.  i use it when i need it.  i can&#039;t help but think that the &quot;druggies&quot; (as someone else put it - pretty good descriptor) just think this stuff acts like a narcotic, and voila, placebo effect.  i just had to get a newly state mandated drug screen for this med.  i was squeaky clean, but also got a bill for $911 from the lab for the screen.  thanks, druggies, for making it exceedingly difficult &amp; expensive for those of us who are legitimate."