In summary, naltrexone appears to produce a modest effect on drinking behavior among alcoholics
(Kranzler and Van Kirk 2001). However, given the comparatively small overall effect of he medication,
a variety of other factors, including medication compliance, the severity and chronicity of alcohol
dependence, and the choice of concomitant psychotherapy, may determine whether an effect of the
medication is observed. Common side effects are nausea, dizziness, headache.