Other additions to his medications included Keppra and metoprolol.
 The patient is not taking any medication. 
(ROOT (S (NP (NP (JJ Other) (NNS additions)) (PP (TO to) (NP (PRP$ his) (NNS medications)))) (VP (VBD included) (NP (NNP Keppra) (CC and) (NN metoprolol))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ is) (RB not) (VP (VBG taking) (NP (DT any) (NN medication)))) (. .)))
( ( ( Other additions ) ( to ( his medications ) ) ) ( ( included ( ( Keppra and ) metoprolol ) ) . ) )
( ( The patient ) ( ( ( is not ) ( taking ( any medication ) ) ) . ) )