As long as your doctor has prescribed everything and knows what types of herbals you are on, I don't see anything wrong with it. Most of the time it takes a certain "cocktail" of medications to get me where i need to be...if I take one out or add one, it messes the whole puzzle up.
I also suggest that if you and your doctor decide to change anything, change only one thing at a time so you know what is making a difference and what is not.
I had a neuro once who was not the brightest...he had me start several things at once, then stop several at the same time (this is when I first started getting really debilitating migraines...BEFORE I WAS EDUCATED) Anyway, I had no idea what was working or not...a GOOD doctor and I had to retrace our steps and restart and restop all of these medications the right way, so we knew what was helping and what was hurting!
Sara