Drilldown: Medicines

Magnesium (oxide, citrate, sulfate, hydroxide, gluconate, chloride salts) (1) · Verapamil (1)

Calan, Calan SR, Verelan, Verelan PM, Isoptin SR (1) · Mag-Ox, Slow-Mag, MagCitrate, Milk of Magnesia (hydroxide); IV sulfate generic (1)

hydroxide)]] (1) · torsades)]] (1) · [[:Category:Antacids|Antacid (hydroxide)]] (1) · [[:Category:Antianginals|Antianginal]] (1) · [[:Category:Antiarrhythmics|Antiarrhythmic (class IV)]] (1) · [[:Category:Antiarrhythmics|Antiarrhythmic (IV sulfate (1) · [[:Category:Antihypertensives|Antihypertensive]] (1) · [[:Category:Calcium_channel_blockers|Calcium channel blocker (non-dihydropyridine)]] (1) · [[:Category:Electrolyte_replacements|Electrolyte replacement]] (1) · [[:Category:Osmotic_laxatives|Osmotic laxative (citrate (1)

None (1) · '"`UNIQ--vote-00001302-QINU`"' Renally cleared; accumulation in advanced CKD can produce neuromuscular and cardiac depression. Hypomagnesemia frequently co-exists with hypokalemia and is often the reason refractory potassium loss does not correct until magnesium is repleted. (1)

'"`UNIQ--vote-00000A66-QINU`"', '"`UNIQ--vote-00000A67-QINU`"', '"`UNIQ--vote-00000A68-QINU`"', '"`UNIQ--vote-00000A69-QINU`"', '"`UNIQ--vote-00000A6A-QINU`"' (1) · '"`UNIQ--vote-00001303-QINU`"', '"`UNIQ--vote-00001304-QINU`"', '"`UNIQ--vote-00001305-QINU`"', '"`UNIQ--vote-00001306-QINU`"', '"`UNIQ--vote-00001307-QINU`"', '"`UNIQ--vote-00001308-QINU`"', '"`UNIQ--vote-00001309-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) · Replacement oxide 400-800 mg/d in divided doses (high diarrhea rate); citrate 200-400 mg/d (better tolerated, better absorbed); IV sulfate 1-2 g over 5-60 minutes for hypomagnesemia or torsades; eclampsia 4-6 g IV loading then 1-2 g/h (1)

IR 40, 80, 120 mg tablets; SR/ER 100-360 mg; IV 2.5 mg/mL (1) · Oxide 400, 500 mg tablets (240, 300 mg elemental); citrate 100, 150, 200 mg tablets; hydroxide oral suspension 400 mg/5 mL; sulfate IV 500 mg/mL ampules (1)

Indication-specific; renal clearance limits tolerable cumulative dosing (1) · ~480 mg/d (oral) for cardiovascular indications; higher off-label for cluster (1)

None · Oral · IV · topical · IM · intranasal · rectal · Subcutaneous · topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · Sublingual · thigh · inhaled · SC · intra-articular

Other values:

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

Other values:

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3-7 hours (IR); functional 24 hours (ER)'"`UNIQ--ref-00000A6B-QINU`"' (1) · Not meaningfully described (electrolyte; renally cleared) (1)

Highly salt-dependent: citrate ~25-30%; oxide ~4% (limited and causes osmotic diarrhea); chloride ~12% (1) · ~20-35% (oral; extensive first-pass via CYP3A4 with R/S enantiomer differences)'"`UNIQ--ref-00000A6C-QINU`"' (1)

IV sulfate is the cornerstone of eclampsia/preeclampsia management; oral replacement also safe.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (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)

OTC (oral salts) and [[USLegal:Prescription only|Rx-only]] (IV) in US (1) · [[USLegal:Prescription only|Rx-only]] in US (1)