For reasons generally beyond my control, I stopped taking Pagoclone for three weeks.
Within a few days I noticed I was stuttering with greater frequency and intensity. I became aware of a general tightness in my throat and (to a lesser degree) articulators that I believe ontributes to disfluency.
I tried using some of the techniques I generally employ to prevent (as in Airflow Technique) and minimize (as in Precision Fluency Shaping) stuttering.
Without Pagoclone, I found it more difficult to apply these techniques - more difficult to maintain composure and exercise control over my speech.
Back on Pagoclone for one week now, and I'm starting feel like I'm getting back on track.