Except as otherwise provided in this division, every person who possesses for sale or purchases for purposes of sale (1) any controlled substance specified in subdivision (b), (c), or (e) of Section 11054, specified in paragraph (14), (15), or (20) of subdivision (d) of Section 11054, or specified in subdivision (b) or (c) of Section 11055, or specified in subdivision (h) of Section 11056, or (2) any controlled substance classified in Schedule III, IV, or V which is a narcotic drug, shall be punished by imprisonment in the state prison for two, three, or four years.