El poate fi blocat competitiv de cationi bivalenți (Mg2 +) și prin efectul medicamentelor blocante ale canalelor lente de Ca + 2 (Verapamil, Diltiazem).
1	El	el	PRON	Pp3msr--------s	Case=Acc,Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs|Strength=Strong	2	nsubj	_	_
2	poate	putea	VERB	Vmip3s	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	fi	fi	AUX	Vanp	Tense=Pres|VerbForm=Inf	4	aux:pass	_	_
4	blocat	bloca	VERB	Vmp--sm	Gender=Masc|Number=Sing|VerbForm=Part	2	ccomp	_	_
5	competitiv	competitiv	ADV	Rgp	Degree=Pos	4	advmod	_	_
6	de	de	ADP	Spsa	AdpType=Prep|Case=Acc	7	case	_	_
7	cationi	cation	NOUN	Ncmp-n	Definite=Ind|Gender=Masc|Number=Plur	4	obl:agent	_	_
8	bivalenți	bivalent	ADJ	Afpmp-n	Definite=Ind|Degree=Pos|Gender=Masc|Number=Plur	7	amod	_	_
9	(	(	PUNCT	LPAR	_	10	punct	_	SpaceAfter=No
10	Mg2	Mg2	PROPN	Np	_	7	appos	_	_
11	+	+	PUNCT	PLUS	_	10	punct	_	SpaceAfter=No
12	)	)	PUNCT	RPAR	_	10	punct	_	_
13	și	și	CCONJ	Crssp	Polarity=Pos	15	cc	_	_
14	prin	prin	ADP	Spsa	AdpType=Prep|Case=Acc	15	case	_	_
15	efectul	efect	NOUN	Ncmsry	Case=Acc,Nom|Definite=Def|Gender=Masc|Number=Sing	7	conj	_	_
16	medicamentelor	medicament	NOUN	Ncfpoy	Case=Dat,Gen|Definite=Def|Gender=Fem|Number=Plur	15	nmod	_	_
17	blocante	blocant	ADJ	Afpfp-n	Definite=Ind|Degree=Pos|Gender=Fem|Number=Plur	16	amod	_	_
18	ale	al	DET	Tsfp	Gender=Fem|Number=Plur|Poss=Yes|PronType=Prs	19	det	_	_
19	canalelor	canal	NOUN	Ncfpoy	Case=Dat,Gen|Definite=Def|Gender=Fem|Number=Plur	17	obl	_	_
20	lente	lent	ADJ	Afpfp-n	Definite=Ind|Degree=Pos|Gender=Fem|Number=Plur	19	amod	_	_
21	de	de	ADP	Spsa	AdpType=Prep|Case=Acc	22	case	_	_
22	Ca	calciu	NOUN	Yn	Abbr=Yes	19	nmod	_	_
23	+	+	PUNCT	PLUS	_	22	punct	_	_
24	2	2	NUM	Mc-s-d	Number=Sing|NumForm=Digit|NumType=Card	22	nummod	_	_
25	(	(	PUNCT	LPAR	_	26	punct	_	SpaceAfter=No
26	Verapamil	Verapamil	PROPN	Np	_	16	appos	_	SpaceAfter=No
27	,	,	PUNCT	COMMA	_	28	punct	_	_
28	Diltiazem	Diltiazem	PROPN	Np	_	26	conj	_	SpaceAfter=No
29	)	)	PUNCT	RPAR	_	26	punct	_	SpaceAfter=No
30	.	.	PUNCT	PERIOD	_	2	punct	_	_
