Efficacy and Safety of Lithium Carbonate in the Treatment of Chronic Spinal Cord Injuries

Inclusion Criteria: * Subjects of either gender and 18-60 years of age; * Subjects with chromic spinal cord injury (defined as a history of spinal cord injury for 12 months or longer); * Subjects with ASIA - classification of A, B, or C for at least 6 months unchanged; * Spinal cord injury vertebral level should be between C4 and T10; * Subjects must be able to read, understand, and complete the VAS; * Subjects who have voluntarily signed and dated an informed consent form, approved by an IRB/IEC, prior to any study specific procedures. Exclusion Criteria: * A history of hypersensitivity or other adverse reaction to lithium; * Significant renal, cardiovascular, hepatic and psychiatric disease; * Significant medical diseases or infection; * Addison's disease; * Debilitation or dehydration; * Recently taken or are taking diuretics or other drugs with known interaction with lithium, such as tricyclic antidepressants, NSAIDs and tetracyclines; * A history of alcohol abuse or drug abuse; * Pregnant or lactating women; * Female of childbearing potential and are unwilling to use an effective contraceptive method while enrolled in the study; * Subjects who are currently participating in another investigational study or has been taking any investigational drug within the last 4 weeks prior to screening of this study; * Subjects who have taken lithium for manic depression or other psychiatric conditions,and finally; * Any criteria, which, in the opinion of the investigator, suggests that the subject would not be compliant with the study protocol.