Kaplan-Meier plot of time to loss of therapeutic response. Loss of therapeutic response was defined as <30% reduction in Visual Analogue Scale pain score from pre-milnacipran exposure or a worsening of fibromyalgia requiring an alternative treatment. Circles represent censored patients.
Clauw et al. Arthritis Research & Therapy 2013 15:R88 doi:10.1186/ar4268