a switch to an equivalent dose of valium (sometimes librium) and a slow taper off that is one method of doing a more humane taper. to find you valium dose, multiply the xanax dose x 20. librium isn't as potent as valium, so your = dose would be higher. both valium and librium are more sedating but also have long half lives and come in a variety of strengths, so that makes tapers a lot easier.