Drilldown: Medicines

Irbesartan (1) · Pramipexole (1) · Primidone (1) · Ropinirole (1) · Telmisartan (1)

Avapro (1) · Micardis (1) · Mirapex (IR), Mirapex ER (1) · Mysoline (1) · Requip (IR), Requip XL (extended-release) (1)

[[:Category:Angiotensin_receptor_blockers|Angiotensin receptor blocker (ARB)]] (2) · [[:Category:Anticonvulsants|Anticonvulsant]] (1) · [[:Category:Antihypertensives|Antihypertensive]] (2) · [[:Category:Antiparkinsonians|Antiparkinsonian]] (2) · [[:Category:Barbiturates|Barbiturate (parent compound)]] (1) · [[:Category:Dopamine agonists|Dopamine D2/D3 receptor agonist (non-ergot)]] (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-0000083E-QINU`"' CYP2C9 substrate; no clinically active metabolites. The IDNT trial established renoprotection in diabetic nephropathy independent of BP lowering, contributing to the ARB class indication in T2DM with proteinuria'"`UNIQ--ref-0000083F-QINU`"'. (1) · '"`UNIQ--vote-00000AEA-QINU`"' The 24-hour half-life supports once-daily dosing with consistent overnight BP control. Largely hepatically cleared (~98% biliary); no significant renal clearance dependence'"`UNIQ--ref-00000AEB-QINU`"'. (1)

'"`UNIQ--vote-00000013-QINU`"', '"`UNIQ--vote-00000014-QINU`"' (1) · '"`UNIQ--vote-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"' (1) · '"`UNIQ--vote-00000017-QINU`"', '"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"', '"`UNIQ--vote-0000001A-QINU`"' (1) · '"`UNIQ--vote-00000840-QINU`"', '"`UNIQ--vote-00000841-QINU`"' (1) · '"`UNIQ--vote-00000AEC-QINU`"', '"`UNIQ--vote-00000AED-QINU`"' (1)

150 mg PO once daily; titrate to 300 mg if needed (1) · 40 mg PO once daily; titrate to 80 mg (1) · Parkinson disease: 0.125 mg PO TID, titrate weekly to maintenance ~1.5 mg TID. Restless legs syndrome: 0.125 mg PO 2-3 hours before bedtime, titrate to 0.5 mg/day if needed (1) · Parkinson disease: 0.25 mg PO TID, titrate weekly. Restless legs syndrome: 0.25 mg PO 1-3 hours before bedtime, titrate to 4 mg/day if needed (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)

20, 40, 80 mg tablets (1) · 75, 150, 300 mg tablets (1) · IR tablets 0.125, 0.25, 0.5, 0.75, 1, 1.5 mg; ER tablets 0.375, 0.75, 1.5, 2.25, 3, 3.75, 4.5 mg (1) · IR tablets 0.25, 0.5, 1, 2, 3, 4, 5 mg; XL tablets 2, 4, 6, 8, 12 mg (1) · Tablets 50, 250 mg (1)

2 g/day (seizures); typically much lower for essential tremor (1) · 24 mg/day (Parkinson disease); 4 mg/day (restless legs syndrome) (1) · 300 mg/d (1) · 4.5 mg/day (Parkinson disease); 0.5 mg/day (restless legs syndrome) (1) · 80 mg/d (1)

Oral (5)

None · Hours · 30-60 minutes · 1-2 hours · ~30 min · LDL lowering at 2 weeks, max by 4 weeks · ~1 hour · 15-30 minutes · 15–30 min · 1–2 h · 30–60 min · Antidepressant effect emerges over 1-2 weeks · BP and symptomatic LUTS improvement within 1-2 weeks · BP effect within 1-2 weeks · Clinical improvement within 24-72 hours · Days · Motor improvement over days at therapeutic dose · Over weeks · Postprandial glucose effect within days; HbA1c by 12 weeks · Sleep effect from first dose; antidepressant effect over 1-4 weeks

Other values:

Search

24 hours (2) · BID-TID dosing (1) · TID dosing (IR); once-daily (ER) (1) · TID dosing (IR); once-daily (XL) (1)

11-15 hours'"`UNIQ--ref-00000842-QINU`"' (1) · 8-12 hours (longer in elderly and renal impairment)'"`UNIQ--ref-0000001B-QINU`"' (1) · Primidone 5-15 hours; '''phenobarbital active metabolite 50-150 hours'''; PEMA (phenylethylmalonamide) active metabolite 16 hours'"`UNIQ--ref-00000017-QINU`"' (1) · ~24 hours (longest of the ARB class; suits patients with morning BP surge)'"`UNIQ--ref-00000AEE-QINU`"' (1) · ~6 hours'"`UNIQ--ref-00000015-QINU`"' (1)

42-58% (oral; dose-dependent)'"`UNIQ--ref-00000AEF-QINU`"' (1) · 60-80% (oral; not significantly affected by food)'"`UNIQ--ref-00000843-QINU`"' (1) · >90% (oral)'"`UNIQ--ref-0000001C-QINU`"' (1) · ~55% (oral)'"`UNIQ--ref-00000016-QINU`"' (1) · ~90% (oral)'"`UNIQ--ref-00000018-QINU`"' (1)

'''Contraindicated in pregnancy''' (all trimesters); fetal renal injury, oligohydramnios, hypocalvaria, hypotension. Stop on detection'"`UNIQ--ref-00000844-QINU`"' (1) · '''Contraindicated in pregnancy''' (all trimesters); fetal renal injury, oligohydramnios, hypocalvaria, hypotension. Stop on detection'"`UNIQ--ref-00000AF0-QINU`"' (1) · Limited human data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data; rarely indicated in pregnancy given the typical patient population.<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 (4) · [[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)