I had a Resident order Nitro x3 SL for CHF the other day, it's something I'd never seen and some of the other more experienced RN's have never seen either. How effective is Nitro in treating CHF? Is this an old tx that a new resident happened to dig up or is it a newer tx? Or is it commonly used and just something that myself and other co-RN's did not happen to know of? Just curious

Thanks in advance