Any person twenty-one (21) years of age or over who violates subsections (a) and (b) of Section 41-29-139 with reference to a controlled substance listed in Schedules I, II, III, IV and V as set out in Sections 41-29-113 through 41-29-121, inclusive, to a person under twenty-one (21) years of age may be punished by the fine authorized by Section 41-29-139, or by a term of imprisonment or confinement up to twice that authorized by said Section 41-29-139, or both, or he may be punished as provided in Section 41-29-142.