Any unobligated balance in the Alabama Mothers and Babies Indigent Care Trust Fund shall not revert to the General Fund at the end of any state fiscal year but shall be automatically carried forward into each succeeding state fiscal year in said trust fund. The moneys in such fund shall be disbursed under the authority of the Alabama Mothers and Babies Indigent Care Trust Fund Board and shall be used exclusively on behalf of persons eligible under the Alabama Medicaid Program.