L-dopa, yup. I don’t think GP meant actually ambien.
Also GP if you check this - what are the downsides of gabapentin your relative was trying to get away from? I thought that was a fairly benign drug, even for long-term use.
I knew someone who took it for a while, and drowsiness, memory issues, balance issues, and depression were all pretty bad alone, much less combined. And getting off of it has to be gradual due to rebound pain.