Drilldown: Medicines

Doxazosin (1) · Linagliptin (1) · Primidone (1) · Sitagliptin (1) · Terazosin (1)

Cardura, Cardura XL (1) · Hytrin (US brand discontinued); mostly generic (1) · Januvia; with metformin Janumet/Janumet XR (1) · Mysoline (1) · Tradjenta; with metformin Jentadueto (1)

[[:Category:Alpha-1_blockers|Alpha-1 adrenergic blocker (non-selective)]] (2) · [[:Category:Anticonvulsants|Anticonvulsant]] (1) · [[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (2) · [[:Category:Antihypertensives|Antihypertensive]] (2) · [[:Category:Barbiturates|Barbiturate (parent compound)]] (1) · [[:Category:BPH_treatments|Benign prostatic hyperplasia treatment]] (2) · [[:Category:DPP-4_inhibitors|DPP-4 inhibitor]] (2) · [[:Category:Incretin_modulators|Incretin pathway modulator]] (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-00000762-QINU`"' Largely renally cleared, hence the eGFR-tiered dosing. Rare but well-documented signals: acute pancreatitis (uncertain causal contribution), severe joint pain, and bullous pemphigoid (class effect, especially in older Asian patients)'"`UNIQ--ref-00000763-QINU`"'. (1) · '"`UNIQ--vote-0000111B-QINU`"' Intraoperative floppy iris syndrome is a recognized class effect. Recently emerging evidence (observational) suggests possible Parkinson's disease risk reduction via PGK1 binding — investigational and not a clinical indication'"`UNIQ--ref-0000111C-QINU`"'. (1)

'"`UNIQ--vote-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"' (1) · '"`UNIQ--vote-00000764-QINU`"' (1) · '"`UNIQ--vote-00000AAD-QINU`"', '"`UNIQ--vote-00000AAE-QINU`"', '"`UNIQ--vote-00000AAF-QINU`"' (1) · '"`UNIQ--vote-0000111D-QINU`"', '"`UNIQ--vote-0000111E-QINU`"' (1) · '"`UNIQ--vote-0000117B-QINU`"' (1)

1 mg PO at bedtime to limit first-dose syncope; titrate weekly to 5-10 mg (1) · 100 mg PO once daily (50 mg if CrCl 30-44; 25 mg if <30 or dialysis) (1) · 5 mg PO once daily (no renal dose adjustment, unlike sitagliptin) (1) · IR 1 mg PO at bedtime, titrate weekly; XL 4-8 mg PO daily (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)

1, 2, 4, 8 mg IR tablets; 4, 8 mg XL tablets (1) · 1, 2, 5, 10 mg capsules and tablets (1) · 25, 50, 100 mg tablets; combination tablets with metformin (1) · 5 mg tablets; combination with metformin (1) · Tablets 50, 250 mg (1)

100 mg/d (1) · 16 mg/d (IR); 8 mg/d (XL) (1) · 2 g/day (seizures); typically much lower for essential tremor (1) · 20 mg/d (1) · 5 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 (4) · BID-TID dosing (1)

Primidone 5-15 hours; '''phenobarbital active metabolite 50-150 hours'''; PEMA (phenylethylmalonamide) active metabolite 16 hours'"`UNIQ--ref-00000017-QINU`"' (1) · ~12 hours (effective); terminal much longer'"`UNIQ--ref-0000117C-QINU`"' (1) · ~12 hours'"`UNIQ--ref-0000111F-QINU`"' (1) · ~12.4 hours'"`UNIQ--ref-00000765-QINU`"' (1) · ~22 hours'"`UNIQ--ref-00000AB0-QINU`"' (1)

>90% (oral; not significantly affected by food)'"`UNIQ--ref-00001120-QINU`"' (1) · ~30% (oral)'"`UNIQ--ref-0000117D-QINU`"' (1) · ~65% (oral)'"`UNIQ--ref-00000AB1-QINU`"' (1) · ~87% (oral)'"`UNIQ--ref-00000766-QINU`"' (1) · ~90% (oral)'"`UNIQ--ref-00000018-QINU`"' (1)

Limited data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data; rarely indicated in pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data; switch to insulin where feasible.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (2) · 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)