"i have a very high tolerance for a lot of pain medications due to pain issues. your body always needs more and more to produce the same effect until almost nothing works. 

fortunately, this type of medication doesn&#039;t affect me that way. although i guess it is mainly used for depression. it has worked like a charm for me to get my body to sleep much longer. and i have never had to increase the dose. the only drawback for me with this medication is that when i do wake up i am pretty groggy for about 45 minutes."