Hi. I did a search on Zoplicone, never having heard of it before, and found this thread on another MedHelp forum.
http://www.medhelp.org/posts/Addiction-Substance-Abuse/ADDICTED-TO-DIAZAPAM-AND-ZOPLICONE/show/49041
There were some other bad references, too. As others have said, each person has different reactions and responses to each medication.
It took a while to find the prescribing information; there was more questions about it on forums that showed up first on google, Here's the link for patient information:
http://www.sandoz.ca/site/en/patients_health_guide/patient_leaflets/pool/ZOPICLONE_PI_EN_112005.pdf
Hope this helps a little if no one else chimes in with personal knowledge of the med. They probably already have while I've been searching, lol.
Take care,
Kathy