Oily brownish liquid in stool. Problem?

I have been recommended to use reshape 120 capsules for weight loss. They are helpful but a certain reddish or brownish oil has started appearing in my stools. I did get myself checked but nothing serious was there. Certain medicines I took stopped it. Also I had stopped reshape for that particular duration. No other symptoms are there. Since 2-3 days I started having reshape again, twice a day. I reduced it to once a day yesterday. The liquid has started appearing again. Is there something that can be done to counter this side effect? The capsules are really helpful and costly. I don't want to waste them. I am away from home and won't be going back for several months which is why it would be difficult to contact my family doctor. I read that multivitamins should be used along with reshape. Will that help me sort this problem?