ACN	Acetonitrile
ANOVA	Analysis of Variance
A→B	Apical to Basolateral
B→A	Basolateral to Apical
BCS	Biopharmaceutics Classification System
CAPES	Coordination for the Improvement of Higher Education Personnel
CV	Coefficient of Variation
DMEM	Dulbecco’s Modified Eagle Medium
DMSO	Dimethyl Sulfoxide
EMA	European Medicines Agency
ESI	Electrospray Ionization
ER	Efflux Ratio
FAPESP	São Paulo Research Foundation
FBS	Fetal Bovine Serum
FDA	Food and Drug Administration
HBSS	Hank’s Balanced Salt Solution
HEPES	N-(2-hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid)
INT	Iodonitrotetrazolium
IS	Internal Standard
LDH	Lactate Dehydrogenase
LOD	Limit of Detection
LLOQ	Lower Limit of Quantification
MF	Matrix Factor
MES	2-(N-morpholino)ethanesulfonic acid
MRM	Multiple Reaction Monitoring
NEAA	Non-Essential Amino Acids
N/A	Not Applicable
PBS	Phosphate-Buffered Saline
Papp	Apparent Permeability Coefficient
P-gp	P-glycoprotein
QC	Quality Control
RE	Relative Error
SPE	Solid-Phase Extraction
TEER	Transepithelial Electrical Resistance
ULOQ	Upper Limit of Quantification
UPLC-MS/MS	Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry
WHO	World Health Organization