Absolutely insane that I found this thread...I've been hatching the same problem recently and am also taking Effexor XR!! I won't worry myself about this any longer!
I know you posted this in 2010 but I do hope you read this. I too am wondering what this is. Although it sounds your case may be a bit more severe but I am in the same boat and wanted to tell you that I am also taking Venlafaxine!! That seems too much of a coincidence. If you do read this it would be great to talk, maybe we can swap info. Thank you!
You are not the only one. I also take venlafaxine ER 150 ml, and have the little white balls. We are losing a lot , if not all, of our medication. I switched to the tablets and pooped out the whole pill. Now I cut it in half and scrape the coating of with a knife, Real drag...need help bad.
I have been experiencing the same things and I ran across this site:
http://www.news-medical.net/drugs/Efexor-XR.aspx
Do not be concerned if you see small white granules or balls in your stools after taking Efexor-XR.
Inside Efexor-XR capsules are spheroids or small white balls that contain the venlafaxine active ingredient. These spheroids are released from the capsule into your gastrointestinal tract. As the spheroids travel the length of your gastrointestinal tract, venlafaxine is slowly released. The spheroid 'shell' remains undissolved and is eliminated in your stools. Therefore, even though, you may see spheroids in your stools, your dose of venlafaxine has been absorbed.
I've been on venlafaxine for over a year now and have had diarrhea for about 9 days. I noticed the tiny white balls this morning and was certain I had a parasite. Thankfully I came across this post. Side note; I too drink a lot of sports drinks. Peculiar. I think I'll just have some dry toast and imodium and hope for the best. Lol
I read somewhere that these little white balls can be from drinking too many sports drinks which I do. I think it's a build up of casein in the intestines that balls up as it moved through. I quit drinking them and it stopped, I started drinking them again and it came back. However, I am also on venlafaxine. Interesting...