Drilldown: Medicines

Magnesium (oxide, citrate, sulfate, hydroxide, gluconate, chloride salts) (1) · Nitroglycerin (glyceryl trinitrate, GTN) (1)

Mag-Ox, Slow-Mag, MagCitrate, Milk of Magnesia (hydroxide); IV sulfate generic (1) · Nitrostat, Nitrolingual, NitroMist, Nitro-Bid, Nitro-Dur, Minitran, Rectiv (1)

hydroxide)]] (1) · torsades)]] (1) · [[:Category:Antacids|Antacid (hydroxide)]] (1) · [[:Category:Antianginals|Antianginal]] (1) · [[:Category:Antiarrhythmics|Antiarrhythmic (IV sulfate (1) · [[:Category:Electrolyte_replacements|Electrolyte replacement]] (1) · [[:Category:Nitrates|Organic nitrate]] (1) · [[:Category:Osmotic_laxatives|Osmotic laxative (citrate (1) · [[:Category:Vasodilators|Vasodilator]] (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-00000C0A-QINU`"', '"`UNIQ--vote-00000C0B-QINU`"', '"`UNIQ--vote-00000C0C-QINU`"', '"`UNIQ--vote-00000C0D-QINU`"', '"`UNIQ--vote-00000C0E-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)

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) · SL 0.3-0.6 mg every 5 minutes up to 3 doses for acute angina (call EMS if not resolved after the third); IV infusion 5-10 mcg/min titrated; transdermal patch 0.2-0.4 mg/hr for 12-14 hours daily (nitrate-free interval prevents tolerance) (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) · SL 0.3, 0.4, 0.6 mg tablets; lingual spray 0.4 mg/spray; ER 2.5-9 mg capsules; transdermal patch 0.1-0.8 mg/hr; 2% ointment; 0.4% rectal ointment; 5 mg/mL IV (1)

Indication-specific; renal clearance limits tolerable cumulative dosing (1) · Indication-specific; titrated to effect (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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Oral: hours; IV: minutes (1) · SL/spray: 1-3 minutes; IV: minutes; patch: 30-60 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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1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' (1) · Not meaningfully described (electrolyte; renally cleared) (1)

Highly route-dependent: SL bypasses first-pass; oral has extensive first-pass (used only for chronic ER preparations); transdermal predictable'"`UNIQ--ref-00000C10-QINU`"' (1) · Highly salt-dependent: citrate ~25-30%; oxide ~4% (limited and causes osmotic diarrhea); chloride ~12% (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) · Used in obstetric emergencies (uterine relaxation, severe hypertension) when needed; otherwise limited routine use.<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)