Absolutely.
The meds are useful. Some are tolerated very well. Some are not.
Please remember. We are individuals... and one thing we have to bear in mind is sometimes our PCP's are busy, under pressure by us, and tend to forget alot of the information is available to them.
That is why I posted that its not a bad thing to present them with the information about plans, like withdrawals regimens if/when you are ready to stop these meds - because there are really no true plans plotted out other than those tried by others like us and their docs.
Just like places like CrazyMeds points out, there is information about these drugs out there that until its forced out of the drug companies, even the docs haven't heard about it.
If they are working for you, great; its not to worry now. If you are worried, then talk it over with your PCP, and begin planning to withdraw, sensibly... NEVER Cold Turkey, unless its an Emergency, and never without Medical attention.
Best Wishes