Abstract: Copper (I) chloride complex of pyrazinic acid is prepared, characterized by elemental analysis, IR, UV-visible spectra and its crystal structure determined by single crystal diffraction methods. This compound is found to exhibit a very positive influence as a drug, in a pharmaceutical acceptable composition for different incurable diseases, e.g. myopathy or weakness of muscles in general, infertility, and certain genetically causes disorders in mammals. These products were found to improve symptoms of myopathy, male infertility, fatigue and weakness of muscles for different reasons, and certain genetically causes disorders in mammals. It also enhanced regeneration of tissue affected by skin burns, scars, improved alopecia, decreased blood lipids and helped in loss of weight in obese patients. The observed wide scope of activities probably due to stem cell stimulation, enhancement the immune system and role of copper dependent enzyme activity.