“…Detailed information can be found in the Supplemental Table (available online at http:// www.mayoclinicproceedings.org). The most commonly studied agents were NSAIDs (n¼26), [30][31][32]37,39,51,52,54,58,61,64,71,72,74,78,[80][81][82][84][85][86][87][88][89][90][91] followed by lidocaine (n¼9), 33,36,[40][41][42][43]55,65,83 capsaicin (n¼6), 29,35,38,53,73,75 and amitriptyline (n¼5). 45,47,59,67,68 Other agents studied included glyceryl trinitrate (n¼3), 44,48,69 opioids (n¼2), 50,60 menthol (n¼2), ...…”