Sep 12, - If you or a loved one is struggling with Lunesta addiction, please call us today for commonly known as “Z-drugs,” alongside Ambien and Sonata. Any use of Lunesta outside of a prescribed dosage is considered abuse. Dec 6, - A study in Japan that compared eszopiclone (Lunesta) versus zolpidem (Ambien), for instance, found that at doses of 2mg or higher. Jun 6, - An Ambien tablet is elliptical with the letters 'AMB', followed by a '5' or '10', indicative of the dosage. The pill can be pink or white. Lunesta, on.