insomnia
"It has worked well for about 12 years as treatment for insomnia at 2 mg. with  no side effects.  Lately it has lost its effectiveness and all other drugs I have tried, including Ambien, do not work at all.  I am wondering if it is safe to take in higher dosage for a long term. Lack of sleep is a terrible curse, although oddly I have little or no fatigue even though I am 68."