Word	Abbreviation
Conventional drug delivery systems	CDDSs
Food and Drug Administration	FDA
European Medicines Agency	EMA
Active pharmaceutical ingredients	APIs
Nanoparticles	NPs
Enhanced permeability and retention	EPR
Gastrointestinal tract	GIT
Reticuloendothelial system	RES
Central nervous system	CNS
Poly(butylcyanoacrylate)	PBCA
Poly(lactic-co-glycolic acid)	PLGA
Poly(lactic acid)	PLA
Federal Food, Drug, and Cosmetic Act	FDCA
Public Health Service Act	PHSA
Nonbiological complex drugs	NBCDs
Pharmacokinetics	PK
Chemistry, manufacturing, and controls	CMC
Nuclear magnetic resonance	NMR
Mass spectrometry	MS
Research and development	R&D
World Health Organization	WHO
Polyethylene glycol	PEG