Drilldown: Medicines

Hydralazine (1)

Apresoline (historical); mostly generic; combination with isosorbide dinitrate marketed as BiDil for self-identified Black patients with HFrEF (1)

[[:Category:Antihypertensives|Antihypertensive]] (1) · [[:Category:Direct_vasodilators|Direct arteriolar vasodilator]] (1)

None (1)

'"`UNIQ--vote-00000683-QINU`"', '"`UNIQ--vote-00000684-QINU`"', '"`UNIQ--vote-00000685-QINU`"', '"`UNIQ--vote-00000686-QINU`"' (1)

PO 10 mg QID; IV 5-10 mg every 20-30 minutes for hypertensive emergency (1)

10, 25, 50, 100 mg tablets; 20 mg/mL IV (1)

300 mg/d typical practical limit (toxicity rises sharply above) (1)

None · Oral · IV · topical · IM · Intranasal · rectal · Subcutaneous · Topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · inhaled · intra-articular · nebulized

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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

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IV: 1-4 hours; PO: 3-8 hours (1)

3-7 hours (slow acetylators) vs 1-3 hours (rapid acetylators) via NAT2 polymorphism'"`UNIQ--ref-00000687-QINU`"' (1)

~25-50% (oral; substantial first-pass via NAT2 acetylation, phenotype-dependent)'"`UNIQ--ref-00000688-QINU`"' (1)

One of the historically preferred IV agents for severe hypertension in pregnancy alongside labetalol and nifedipine.<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 (1)