Chandra 2006.

Methods	Double‐blind, parallel, head‐to‐head, 2‐arm RCT 9 weeks
Participants	Adult PHN patients 8 weeks of postherpetic neuralgia pain after healing of rash Pain intensity of at least 40 mm on a 100 mm VAS at screening and at randomisation Average pain score of at least 4 on the Likert scale during the baseline week n = 70
Interventions	Gabapentin Nortriptyline Flexibly dosed to maximum tolerated dose
Outcomes	Pain intensity Sleep
Notes	Unable to ascertain pain duration ‐ not sure if chronic