Drilldown: Medicines

Cephalexin (1) · Icosapent ethyl (eicosapentaenoic acid ethyl ester, EPA-EE) (1) · Omega-3-acid ethyl esters (1) · Primidone (1)

Keflex, Daxbia, Panixine; mostly prescribed generically (1) · Lovaza, Omtryg (1) · Mysoline (1) · Vascepa (1)

[[:Category:Anticonvulsants|Anticonvulsant]] (1) · [[:Category:Barbiturates|Barbiturate (parent compound)]] (1) · [[:Category:Beta-lactam_antibiotics|β-lactam antibiotic]] (1) · [[:Category:Cephalosporins|Cephalosporin (first-generation)]] (1) · [[:Category:Lipid-lowering_agents|Lipid-lowering agent]] (2) · [[:Category:Omega-3_fatty_acids|Omega-3 fatty acid]] (2) · [[:Category:Tremor medicines|Tremor medicine]] (1)

None (2) · '"`UNIQ--vote-00000013-QINU`"' Strong CYP3A4 induction via the phenobarbital metabolite produces many interactions (reduces oral contraceptives, warfarin, many psychotropics). Essential-tremor efficacy is the unique pharmacological selling point'"`UNIQ--ref-00000014-QINU`"'. (1) · '"`UNIQ--vote-0000004E-QINU`"' The EPA+DHA mix is biochemically and clinically distinct from icosapent ethyl'"`UNIQ--ref-0000004F-QINU`"'. (1)

'"`UNIQ--vote-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"' (1) · '"`UNIQ--vote-00000050-QINU`"' (1) · '"`UNIQ--vote-000004ED-QINU`"', '"`UNIQ--vote-000004EE-QINU`"', '"`UNIQ--vote-000004EF-QINU`"', '"`UNIQ--vote-000004F0-QINU`"', '"`UNIQ--vote-000004F1-QINU`"' (1) · '"`UNIQ--vote-000013CF-QINU`"', '"`UNIQ--vote-000013D0-QINU`"' (1)

2 g PO BID with meals (4 g/d total) (1) · 4 g PO daily (as 4 x 1 g capsules once daily, or 2 capsules BID) (1) · 500 mg PO every 6 hours, or 250 mg every 6 hours for mild infections (1) · Seizures: 100-125 mg PO at bedtime x 3 days, then BID, then TID, escalating to 750-1500 mg/day. Essential tremor: 25-50 mg PO at bedtime, titrate slowly to 250-750 mg/day (1)

0.5 g, 1 g capsules (1) · 1 g soft gelatin capsules containing ~465 mg EPA + ~375 mg DHA as ethyl esters (1) · 250 mg, 500 mg, 750 mg capsules; 250 mg/5 mL, 125 mg/5 mL suspension; tablets (1) · Tablets 50, 250 mg (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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Oral (4)

Anticonvulsant effect emerges with slow titration over weeks; tremor effect over weeks (1) · Hours (1) · Triglyceride lowering at 2-4 weeks; max at 8 weeks (1) · Triglyceride lowering at 4-8 weeks; CV benefit emerges over months (1)

12 hours (1) · 6-8 hours (1) · BID-TID dosing (1) · Daily dosing (1)

Not well characterized; tissue incorporation over weeks'"`UNIQ--ref-00000051-QINU`"' (1) · Primidone 5-15 hours; '''phenobarbital active metabolite 50-150 hours'''; PEMA (phenylethylmalonamide) active metabolite 16 hours'"`UNIQ--ref-00000017-QINU`"' (1) · ~1 hour'"`UNIQ--ref-000004F2-QINU`"' (1) · ~89 hours (EPA, the active metabolite)'"`UNIQ--ref-000013D1-QINU`"' (1)

90% (oral; food delays but does not reduce absorption)'"`UNIQ--ref-000004F3-QINU`"' (1) · Improved with food'"`UNIQ--ref-00000052-QINU`"' (1) · Substantially improved with high-fat meal; take with food'"`UNIQ--ref-000013D2-QINU`"' (1) · ~90% (oral)'"`UNIQ--ref-00000018-QINU`"' (1)

Generally considered safe; widely used.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Substantial teratogenic signal (barbiturate class effects including neonatal withdrawal and hemorrhagic disease of newborn).<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 (3) · [[USLegal:Prescription only|Rx-only]] in US. '''Federally non-controlled despite being a barbiturate''', a paradoxical situation given that its primary active metabolite phenobarbital is Schedule IV'"`UNIQ--ref-00000019-QINU`"' (1)