ABC	ATP-binding cassette
ASCT2	glutamine membrane transporter
BBB	blood-brain barrier
BCRP	breast cancer resistance protein
BCSFB	blood-cerebrospinal fluid barrier
BECs	brain endothelial cells
BJJS	bajijiasu
BSEP	the bile salt export pump
CAR	constitutive androstane receptor
CBZ	carbamazepine
CIA	collagen-induced arthritis
CP	choroid plexus
CSF	cerebrospinal fluid
HDIs	herb–drug interactions
MATEs	mammal multidrug and toxin extrusion proteins
MO	Morinda officinalis F.C. How.
MRPs	multidrug resistance-associated proteins
MTX	methotrexate
OATs	organic anion transporters
OATPs	the organic anion transporting polypeptides
OCTs	organic cation transporters
OCTNs	carnitine transporters
PC	Polygonum cuspidatum
PEPTs	peptide transporters
PHT	phenytoin
P-gp	P-glycoprotein
PXR	pregnane X receptor
RGE	red ginseng extract
RP	rheum palmatum
SA	sinapic acid
SLC	solute carrier
SJW	St. John’s wort
THP	pirarubicin
XRF	xanthone rich fraction