I took zolpidem (Ambien) for twelve years and managed to get off it a year ago by simply tapering and the stopping. Hi pitched tinnitus and occasional insomnia are still some of the after effects and by-products. The struggle to get off zolpidem was far worse than the tinnitus but worth it.
What exactly are frown lines? Frown lines are the lines in the skin which are formed by the movement of muscles of expression, so-called dynamic lines because they depend on motion for creation as opposed to lines from photo damage (lifetime sun exposure).
Contour lines normally connect areas with equal data values, so may generally be called isolines or isopleths-lines of the same value. Normally, the primary set of contour lines is displayed as a solid line, while the secondary contour is displayed as a &shed line. For example, a standard 850-hPa, 24-hour prognosis chart has height contours in solid lines, temperature contours in dashed lines, and wind speed and direction as plotted data.