Drilldown: Medicines

Ascorbic acid (vitamin C) (1) · Magnesium (oxide, citrate, sulfate, hydroxide, gluconate, chloride salts) (1)

Generic; huge OTC presence (1) · Mag-Ox, Slow-Mag, MagCitrate, Milk of Magnesia (hydroxide); IV sulfate generic (1)

hydroxide)]] (1) · torsades)]] (1) · [[:Category:Antacids|Antacid (hydroxide)]] (1) · [[:Category:Antiarrhythmics|Antiarrhythmic (IV sulfate (1) · [[:Category:Antioxidants|Antioxidant]] (1) · [[:Category:Electrolyte_replacements|Electrolyte replacement]] (1) · [[:Category:Osmotic_laxatives|Osmotic laxative (citrate (1) · [[:Category:Vitamins|Vitamin]] (1) · [[:Category:Water-soluble_vitamins|Water-soluble vitamin]] (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-000012E5-QINU`"', '"`UNIQ--vote-000012E6-QINU`"', '"`UNIQ--vote-000012E7-QINU`"', '"`UNIQ--vote-000012E8-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)

General supplementation 75-90 mg/d (RDA); scurvy treatment 100-1000 mg/d for several weeks; megadose claims unsupported (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)

100, 250, 500, 1000 mg tablets, chewables, gummies, effervescent; IV (specialty) (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) · UL 2000 mg/d in adults (1)

None · Oral · IV · topical · IM · intranasal · rectal · subcutaneous · Topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · Inhaled · intra-articular · nebulized

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Days for symptom improvement in scurvy (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

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Not meaningfully described (electrolyte; renally cleared) (1) · ~10-20 days (steady-state body pool); single dose plasma ~2 hours (1)

Highly salt-dependent: citrate ~25-30%; oxide ~4% (limited and causes osmotic diarrhea); chloride ~12% (1) · ~70-90% at typical doses; saturable at high doses (>500 mg) (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) · Safe at routine doses; routinely supplemented in pregnancy.<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) · OTC in US (1)