He states that he may have used 2x100mc fentanyl patches instead of his normal 50mcg and 100mcg as prescribed.
 Patient is constipated
(ROOT (S (NP (PRP He)) (VP (VBZ states) (SBAR (IN that) (S (NP (PRP he)) (VP (MD may) (VP (VB have) (VP (VBN used) (NP (NP (JJ 2x100mc) (NN fentanyl) (NNS patches)) (PP (RB instead) (IN of) (NP (NP (PRP$ his) (JJ normal) (NN 50mcg)) (CC and) (NP (NN 100mcg))))) (SBAR (IN as) (S (VP (VBN prescribed)))))))))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ is) (VP (VBN constipated)))))
( He ( ( states ( that ( he ( may ( have ( ( used ( ( 2x100mc ( fentanyl patches ) ) ( instead ( of ( ( ( his ( normal 50mcg ) ) and ) 100mcg ) ) ) ) ) ( as prescribed ) ) ) ) ) ) ) . ) )
( Patient ( is constipated ) )