What are the treatment of methamphetamine withdrawal syndrome?

There aren't any: In part because there is no true withdrawal syndrome. If people have been using methamphetamine, particularly in high dose binges, there is a "crash" that occurs after several days of use associated with fatigue, excessive sleep and overeating. It is self-limited and goes away after a couple days, followed by increasing craving for meth. Topirimate, a seizure drug, has helped to reduce craving.