From: Italian guidelines for primary headaches: 2012 revised version
Symptomatic drugs | |
+++ | The majority (≥60 %) of the patients had partial or total relief of headache. More than 30 % of them were pain free |
++ | Many patients (from ≥40 to <60 %) had partial or total relief of headache, or 20–29 % of the patients were pain free |
+ | Some of the patients (from 20 to <40 %) had partial or total relief of headache. Up to 20 % were pain free |
0 | Less than 20 % of the treated patients received a clinical benefit |
? | The members of the Ad Hoc Committee were unable to express any judgement on effectiveness based on their personal clinical impressions |
Preventive drugs | |
+++ | The majority (≥50 %) of the patients experienced a reduction, of at least 50 %, in the frequency (and intensity) of attacks |
++ | Many patients (from ≥30 to <50 %) experienced a reduction, of at least 50 %, in the frequency (and intensity) of attacks |
+ | Some of the patients (from ≥20 to <30 %) experienced a reduction, of at least 50 %, in the frequency (and intensity) of attacks |
0 | Less than 20 % of the treated patients received a clinical benefit |
? | The members of the Ad Hoc Committee were unable to express any judgement on effectiveness based on their personal clinical impressions |