Novel peripheral antinociceptive compounds are disclosed having a pharmacophore unit that target small-diameter nerve fibers that transmit signals of pain and discomfort from the soma and viscera. By acting on this target, the pharmacophore unit obtunds pain and diminishes hyper-reflexia from organs such as the skin, the respiratory tract, the corpus, the lower urinary tract, and the bowel. The pharmacophore unit is coupled to substituents that facilitate delivery of the pharmacophore to its target.