I have been having neck and back problems for a while now... and well to make a long story short, My dr thinks I might have a pinch nerve or a buldging disc.. I am going to have to have a cat scan and the dr has given me naproxen sodium (controlled-release tablets).. other wise none as Aleve. She know I breastfeed and told me to take the pill when I would be going the longest without breastfeeding, which is at bed time. When I visited Kellymom.com.. I notice it says that it is an L3 for short term use and an L4 for chronic use.. I have done took the pill and now I am a little frightened from the information I found.. )= Have any one here takent his kind of meds?.. did you see any kind of reaction in your LO? I am confused about the pills and if it is going to hurt my 17month old?.. can anyone help me out?