Complex sentence: Obetrol is a pharmaceutical stimulant, amphetamine, used as an anorexiant to treat exogenous obesity with racemic amphetamine and methamphetamine salts.
Split into simpler sentences: Obetrol is a pharmaceutical stimulant, amphetamine, used as an anorexiant to treat exogenous obesity. Obterol contains racemic amphetamine and methamphetamine salts.