[33A. Chapter not to apply to Ayurvedic, Siddha or Unani drugs.— Save as otherwise provided in this Act, nothing contained in this Chapter shall apply to 4[Ayurvedic, Siddha or Unani] drugs.] 5 [CHAPTER IVA P ROVISIONS RELATING TO 4 [A YURVEDIC , S IDDHA AND U NANI ] D RUGS