Drilldown: Medicines

Ascorbic acid (vitamin C) (1) · Benzonatate (1) · Cefdinir (1)

Generic; huge OTC presence (1) · Omnicef (discontinued in US under brand); mostly generic (1) · Tessalon, Zonatuss (1)

[[:Category:Antioxidants|Antioxidant]] (1) · [[:Category:Antitussives|Antitussive]] (1) · [[:Category:Beta-lactam_antibiotics|β-lactam antibiotic]] (1) · [[:Category:Cephalosporins|Cephalosporin (third-generation)]] (1) · [[:Category:Vitamins|Vitamin]] (1) · [[:Category:Water-soluble_vitamins|Water-soluble vitamin]] (1)

None (2) · '"`UNIQ--vote-00000015-QINU`"' Pediatric ingestion (capsule chewed or punctured) releases the free local anesthetic and causes seizures, cardiac arrhythmia, and death'"`UNIQ--ref-00000016-QINU`"'. (1)

'"`UNIQ--vote-00000017-QINU`"' (1) · '"`UNIQ--vote-000009DF-QINU`"', '"`UNIQ--vote-000009E0-QINU`"', '"`UNIQ--vote-000009E1-QINU`"', '"`UNIQ--vote-000009E2-QINU`"', '"`UNIQ--vote-000009E3-QINU`"' (1) · '"`UNIQ--vote-000012E5-QINU`"', '"`UNIQ--vote-000012E6-QINU`"', '"`UNIQ--vote-000012E7-QINU`"', '"`UNIQ--vote-000012E8-QINU`"' (1)

100-200 mg PO TID (max 600 mg/d) (1) · 300 mg PO BID, or 600 mg PO once daily, ×5-10 days; pediatric 14 mg/kg/d (1) · General supplementation 75-90 mg/d (RDA); scurvy treatment 100-1000 mg/d for several weeks; megadose claims unsupported (1)

100, 150, 200 mg liquid-filled capsules ("perles") (1) · 100, 250, 500, 1000 mg tablets, chewables, gummies, effervescent; IV (specialty) (1) · 300 mg capsules; 125, 250 mg/5 mL suspension (1)

None · Indication-specific · 40 mg/d · 10 mg/d · 20 mg/d · 80 mg/d · 10 mg/d (adults) · 100 mg/d · 4 g/d · 400 mg/d · 40 mg/d typical; up to 240 mg/d for Zollinger-Ellison · 5 mg/d · 50 mg/d · 600 mg/d · No fixed ceiling; titrate to clinical effect and tolerability with CDC opioid prescribing guidance constraints on morphine-milligram-equivalent (MME) totals · No fixed maximum; titrated to TSH target · TID per eye · Titrated to glucose; no fixed ceiling · Titrated to glucose; no fixed maximum · '''20 mg/day in adults >60 years''' per FDA's 2011-2012 QT-prolongation warning; 40 mg/day in adults ≤60

Other values:

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IV (1) · Oral (2) · Oral (swallow whole) (1)

15-20 minutes (1) · Days for symptom improvement in scurvy (1) · Hours (1)

12-24 hours (1) · 3-8 hours (1) · Hours (1)

Not well characterized'"`UNIQ--ref-00000018-QINU`"' (1) · ~1.7 hours'"`UNIQ--ref-000009E4-QINU`"' (1) · ~10-20 days (steady-state body pool); single dose plasma ~2 hours (1)

16-21% capsule, 25% suspension (oral; iron and antacids reduce absorption substantially)'"`UNIQ--ref-000009E5-QINU`"' (1) · Not well characterized'"`UNIQ--ref-00000019-QINU`"' (1) · ~70-90% at typical doses; saturable at high doses (>500 mg) (1)

Generally considered safe in pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data; animal reproductive studies not conducted<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 in US (1) · [[USLegal:Prescription only|Rx-only]] in US (2)