Drilldown: Medicines

Terazosin (1) · Vardenafil (1)

Hytrin (US brand discontinued); mostly generic (1) · Levitra, Staxyn (1)

PDE5 Inhibitor (1) · [[:Category:Alpha-1_blockers|Alpha-1 adrenergic blocker (non-selective)]] (1) · [[:Category:Antihypertensives|Antihypertensive]] (1) · [[:Category:BPH_treatments|Benign prostatic hyperplasia treatment]] (1)

Selective inhibitor of PDE5. Slightly higher PDE5/PDE6 selectivity vs sildenafil (less visual side effect) but more PDE1 cross-activity (occasional QT effects at high doses). (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-00000669-QINU`"' (1) · '"`UNIQ--vote-0000111D-QINU`"', '"`UNIQ--vote-0000111E-QINU`"' (1)

1 mg PO at bedtime to limit first-dose syncope; titrate weekly to 5-10 mg (1) · 10 mg ~1 h before sexual activity (1)

1, 2, 5, 10 mg capsules and tablets (1) · 2.5, 5, 10, 20 mg tabs (Levitra); 10 mg ODT (Staxyn) (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

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Oral (2)

BP and symptomatic LUTS improvement within 1-2 weeks (1) · ~30 min (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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4–5 h (1) · ~12 hours'"`UNIQ--ref-0000111F-QINU`"' (1)

>90% (oral; not significantly affected by food)'"`UNIQ--ref-00001120-QINU`"' (1) · ~15% (extensive hepatic first-pass) (1)

Category B (1) · Limited data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx-only in US (1) · [[USLegal:Prescription only|Rx-only]] in US (1)