Drilldown: Medicines

Verapamil (1)

Calan, Calan SR, Verelan, Verelan PM, Isoptin SR (1)

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None (1)

'"`UNIQ--vote-00000A66-QINU`"', '"`UNIQ--vote-00000A67-QINU`"', '"`UNIQ--vote-00000A68-QINU`"', '"`UNIQ--vote-00000A69-QINU`"', '"`UNIQ--vote-00000A6A-QINU`"' (1)

IR 80-120 mg PO TID; ER 180-240 mg PO daily; IV 2.5-5 mg over 2 min for SVT termination (under monitoring); cluster prophylaxis up to 480-960 mg/d in divided doses (1)

IR 40, 80, 120 mg tablets; SR/ER 100-360 mg; IV 2.5 mg/mL (1)

~480 mg/d (oral) for cardiovascular indications; higher off-label for cluster (1)

IV (1) · Oral (IR and multiple ER) (1)

IV: 1-3 minutes (SVT termination); PO IR: 30-60 minutes; ER: hours (1)

None · 24 hours · 4-6 hours · 12 hours · 6-8 hours · Daily dosing · 8-12 hours · 12-24 hours · Hours · Hours per application · 24 hours (HS dosing) · 24 hours (once-daily dosing) · 24 h · N/A · N/A (replacement) · Variable · ~7-8 hours · 3-5 hours · 4-6 hours (IR); 24 hours (ER) · 6-12 hours

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3-7 hours (IR); functional 24 hours (ER)'"`UNIQ--ref-00000A6B-QINU`"' (1)

~20-35% (oral; extensive first-pass via CYP3A4 with R/S enantiomer differences)'"`UNIQ--ref-00000A6C-QINU`"' (1)

Limited data; alternative antihypertensives generally preferred. Crosses placenta.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

[[USLegal:Prescription only|Rx-only]] in US (1)