Change in brand name of tamoxifen caused new side effects

I thought this worth sharing. Six weeks ago I was switched to Nolvadex-D - a brand name of tamoxifen. Wish I could tell you which brand I was on, but I hadn't kept the packaging and, believe it or not, my pharmacy doesn't have a record.  Two weeks into the change, I noticed a number of side effects: brown discharge, chronic sore throat, bladder way more leaky than usual, bloating,weight gain. I was given a full physical and it was determined the change in drug brand must be the cause of the side effects. Since I only had a couple months left to complete my tamoxifen protocol, my onc took me off and I will be starting an A.I. just a little earlier than planned. What concerns me, though, is that women may not be aware that the brand alone can make a difference in side effects and might put up with side effects unnecessarily, when another brand might suit them better.  (fillers and dyes can cause havoc apparently) And so, I am sharing my story simply as a little 'heads up.'