opiate dependence
"I've been using daily Ultra low doses of naltrexone (15 MICROgrams not milligrams) for 3 weeks now in conjunction with exogenous opiates, and have found that my tolerance has been reduced by half within this period. I cannot attribute this to anything else especially not placebo as I have been highly sceptical about the whole thing. 

    Scientists have suggested that naltrexone blocks the surplus opiate receptors which contribute towards tolerance. Furthermore it is also suggested that it blocks the release of endorphins which contribute towards tolerance.

   I have not encountered any side effects at all (the dose is almost homeopathic) and would recommend this for any user to reduce their tolerance leading to easier withdrawals."