Figure 2From: Continuing efficacy of milnacipran following long-term treatment in fibromyalgia: a randomized trialKaplan-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.Back to article page