PECS II	Pectoral Nerve Block
LC-MS/MS	liquid chromatography coupled with tandem mass spectrometry
FDA	Food and Drug Administration
EMA	European Medicines Agency
Cmax	maximum plasmatic concentration
Tmax	time of maximum concentration
HPLC	high-performance liquid chromatography
QC	quality control
AUC	area under the curve
SD	standard deviation
CV	coefficient of variation