After many years of success treating my problems with allergies, I learned that Rondec TR and its generic equivalent Coldec TR were no longer being manufactured. I have tried other meds, but without success. It seems like the key ingredient of Carbinoxamine is lacking in the newer drugs and that is the ingredient of benefit for me. I would welcome any ideas and also would like to better understand why Rondec/Coldec is no longer produced. ## I cannot answer as to why it is no longer made, it could have been found to be dangerous, or the company just wasn't selling it the way they used to, so they were losing money and decided to stop marketing it. I haven't heard of a recall involving it, so my best guess would be that latter reason. There are a couple brand names it was sold und...