Complex sentence: Pregabalin is a derivative of the naturally occurring inhibitory neurotransmitter γ-Aminobutyric acid (GABA) and is classified as a central nervous system depressant by the Drug Enforcement Agency.
Split into simpler sentences: Pregabalin is a derivative of the naturally occurring inhibitory neurotransmitter γ-Aminobutyric acid (GABA). It is classified as a central nervous system depressant by the Drug Enforcement Agency.