Limits of medication-overuse headache classification (code 8.2 according to ICHD-II)”

The major chamges that we propose are: 1. classifying the drugs inducing MOH into 2 groups: drugs with psychotropic effects that produce tolerance, dependence, repetition of intake and, sometimes, abstinence symptoms after withdarawal; drugs related to non-dependence-producing substances; 2 including in the first group also the combinations of analgesics and drugs with psychotropic effects, since we consider the latter as the most important component to maintain overuse.