Trial period (1 wk too short?)Suggestion (trial period)1 wk washout (Needed?)
GDG1Yes3-4 wksYes
GDG2Yes≥ 8 wksYes
GDG3Yes (but include)≥ 4 wksYes
GDG4Yes3-4 wksYes
GDG5Yes2-3 wksYes
GDG6Yes≥ 4 wksYes
GDG7
GDG8Probably (but include)include allYes
GDG9
GDG10Yes≥ 2 wksYes

From: Appendix 9.3A, Results of GDG short questionnaires

Cover of Neuropathic Pain
Neuropathic Pain: The Pharmacological Management of Neuropathic Pain in Adults in Non-Specialist Settings.
NICE Clinical Guidelines, No. 96.
Centre for Clinical Practice at NICE (UK).
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