( It ( ( ( works ( on ( nerves ( throughout ( the ( ( body and ) brain ) ) ) ) ) ) ( by ( blocking ( several ( of ( ( the receptors ) ( on ( nerves ( -LRB- ( ( ( ( ( ( ( dopamine ( type 2 ) ) , ) ( ( serotonin type ) 2 ) ) , ) and ) ( alpha ( 2 ( adrenergic receptors ) ) ) ) -RRB- ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ works) (PP (IN on) (NP (NP (NNS nerves)) (PP (IN throughout) (NP (DT the) (NN body) (CC and) (NN brain))))) (PP (IN by) (S (VP (VBG blocking) (NP (NP (JJ several)) (PP (IN of) (NP (NP (DT the) (NNS receptors)) (PP (IN on) (NP (NP (NNS nerves)) (PRN (-LRB- -LRB-) (NP (NP (JJ dopamine) (NN type) (CD 2)) (, ,) (NP (NP (NN serotonin) (NN type)) (NP (CD 2))) (, ,) (CC and) (NP (CD alpha) (CD 2) (JJ adrenergic) (NNS receptors))) (-RRB- -RRB-))))))))))) (. .)))
It works on nerves throughout the body and brain by blocking several of the receptors on nerves (dopamine type 2, serotonin type 2, and alpha 2 adrenergic receptors).
(ROOT (S (NP (NNP Addiction)) (VP (VBZ affects) (NP (NP (DT the) (JJ dopamine) (NNS receptors)) (PP (IN within) (NP (DT the) (NN brain))))) (. .)))