Fig. 2From: Intrauterine lidocaine and naproxen for analgesia during intrauterine device insertion: randomized controlled trialMean visual analog scores within 30 min of IUD insertion. Bars denote treatment groups with standard deviation. Treatment groups are lidocaine instillation and naproxen, lidocaine instillation and placebo capsule, placebo instillation and naproxen, placebo instillation and placebo capsuleBack to article page