Re: naproxen is causing fluid retention in my upper arms, can anything be done about
There have been some heart related adverse effects with this drug and I would get to my doctor soon to have it checked out. Edema, which is fluid retention, is one symptom of early, that's very early, heart trouble. It's most probably not that but it can't hurt to get it checked soon. I had it happen to me but unfortunately it was my heart.