Drilldown: Medicines

Bisoprolol (1) · Lactulose (1) · Nebivolol (1)

Bystolic (1) · Kristalose, Constulose, Generlac, Enulose (1) · Zebeta (1)

Beta Blocker (2) · Cardioselective (β1) (1) · Cardioselective (β1) + vasodilator (1) · [[:Category:Disaccharides|Non-absorbable disaccharide]] (1) · [[:Category:Hepatic_encephalopathy_treatments|Hepatic encephalopathy treatment]] (1) · [[:Category:Osmotic_laxatives|Osmotic laxative]] (1)

None (1) · Highly β1-selective adrenergic antagonist. Greater selectivity than metoprolol or atenolol. (1) · The d-enantiomer is a highly β1-selective antagonist; the l-enantiomer triggers endothelial nitric-oxide–mediated vasodilation. Unique among beta blockers for this NO mechanism. (1)

'"`UNIQ--vote-0000059D-QINU`"' (1) · '"`UNIQ--vote-00000636-QINU`"', '"`UNIQ--vote-00000637-QINU`"', '"`UNIQ--vote-00000638-QINU`"' (1) · '"`UNIQ--vote-00000F5C-QINU`"', '"`UNIQ--vote-00000F5D-QINU`"' (1)

2.5–5 mg daily (HTN); 1.25 mg daily (HFrEF, slow titration) (1) · 5 mg daily (1) · Constipation: 15-30 mL PO daily (titrate to 1-2 soft stools/day); hepatic encephalopathy: 20-30 g (30-45 mL) PO/PR every 1-2 hours acutely until soft stools, then BID-QID to target 2-3 soft stools/day (1)

10 g/15 mL solution (Constulose); 10 g, 20 g powder packets (Kristalose) (1) · 2.5, 5, 10, 20 mg tabs (1) · 5, 10 mg tabs (1)

20 mg/d (1) · 40 mg/d (1) · Indication-specific; HE may require high-volume dosing (1)

especially in acute HE) (1) · Oral (3) · rectal (enema (1)

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:

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24 h (2) · Hours (1)

9–12 h (1) · Not meaningfully described — lactulose is not significantly absorbed (1) · ~10 h (CYP2D6 extensive metabolizers); up to 31 h (poor metabolizers) (1)

<3% systemic absorption (the basis of the safety and mechanism)'"`UNIQ--ref-00000F5E-QINU`"' (1) · ~12% (extensive metabolizers); ~96% (poor metabolizers) (1) · ~90% (low first-pass) (1)

Category C (2) · Generally considered safe (minimal systemic absorption).<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx-only in US (2) · [[USLegal:Prescription only|Rx-only]] in US (1)