Efficacy of Amitriptyline for Treatment of Somatoform Pain Disorder in the Orofacial Region To determine the efficacy of amitriptyline and the optimal dosage for treating a somatoform pain disorder in the orofacial region...Conclusion: Amitriptyline was effective in relieving pain associated with a somatoform pain disorder in the orofacial region. The dose of amitriptyline may need to be as high as that used to treat a major depression [more...]