Drilldown: Medicines

Nitroglycerin (glyceryl trinitrate, GTN) (1) · Sodium Oxybate (1)

Nitrostat, Nitrolingual, NitroMist, Nitro-Bid, Nitro-Dur, Minitran, Rectiv (1) · Xyrem; Xywav (lower-sodium formulation with Ca/Mg/K salts) (1)

GABAB Agonist; Endogenous GHB receptor agonist (1) · [[:Category:Antianginals|Antianginal]] (1) · [[:Category:Nitrates|Organic nitrate]] (1) · [[:Category:Vasodilators|Vasodilator]] (1)

None (1) · Agonist at the metabotropic GABAB receptor and the endogenous γ-hydroxybutyrate (GHB) receptor. Produces deep sleep with increased slow-wave architecture, suppression of REM intrusion, and cataplexy reduction. (1)

'"`UNIQ--vote-00000717-QINU`"', '"`UNIQ--vote-00000718-QINU`"', '"`UNIQ--vote-00000719-QINU`"' (1) · '"`UNIQ--vote-00000C0A-QINU`"', '"`UNIQ--vote-00000C0B-QINU`"', '"`UNIQ--vote-00000C0C-QINU`"', '"`UNIQ--vote-00000C0D-QINU`"', '"`UNIQ--vote-00000C0E-QINU`"' (1)

2.25 g at bedtime + 2.25 g 2.5–4 h later; titrate weekly to 6–9 g/night total (1) · SL 0.3-0.6 mg every 5 minutes up to 3 doses for acute angina (call EMS if not resolved after the third); IV infusion 5-10 mcg/min titrated; transdermal patch 0.2-0.4 mg/hr for 12-14 hours daily (nitrate-free interval prevents tolerance) (1)

0.5 g/mL oral solution (1) · SL 0.3, 0.4, 0.6 mg tablets; lingual spray 0.4 mg/spray; ER 2.5-9 mg capsules; transdermal patch 0.1-0.8 mg/hr; 2% ointment; 0.4% rectal ointment; 5 mg/mL IV (1)

9 g/night (1) · Indication-specific; titrated to effect (1)

IV (1) · lingual spray (1) · Oral (must be taken in bed; effects within minutes) (1) · oral ER (1) · rectal (1) · Sublingual (1) · topical (1) · transdermal (1)

15–30 min (fasting) (1) · SL/spray: 1-3 minutes; IV: minutes; patch: 30-60 minutes (1)

SL: 30 minutes; patch: 12-14 hours; IV continuous (1) · ~3 h per dose (twice-nightly schedule required) (1)

None · ~12 hours · ~27 days · ~5 h (caffeine) · '''Autoinduction''': 25-65 hours initially, falling to 12-17 hours after 2-3 weeks of dosing as carbamazepine induces its own CYP3A4 metabolism. Major clinical implication: doses require re-titration after the autoinduction period'"`UNIQ--ref-0000001D-QINU`"' · 0.5-1.5 hours (plasma); pharmacodynamic effect persists 24+ hours'"`UNIQ--ref-000000DE-QINU`"' · 1-1.3 hours'"`UNIQ--ref-000001A1-QINU`"' · 1-1.5 hours'"`UNIQ--ref-00000DE3-QINU`"' · 1-2 hours (parent compound)'"`UNIQ--ref-00000029-QINU`"' · 1-2 hours (parent); 18-30 hours for active metabolite oxypurinol'"`UNIQ--ref-0000030F-QINU`"' · 1-2 hours'"`UNIQ--ref-00000017-QINU`"' · 1-3 days acute, 4-6 days chronic; 4-16 days for norfluoxetine'"`UNIQ--ref-0000004C-QINU`"' · 1-3 hours (normal liver); markedly prolonged in overdose with glutathione depletion'"`UNIQ--ref-00000022-QINU`"' · 1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' · 1.4 hours (parent); 13-24 hours for active metabolite canrenone'"`UNIQ--ref-00000354-QINU`"' · 1.5-2 hours (longer in renal failure)'"`UNIQ--ref-00000222-QINU`"' · 1.5-2 hours'"`UNIQ--ref-00000020-QINU`"' · 10-11 hours (benazeprilat, the active metabolite)'"`UNIQ--ref-00000A22-QINU`"' · 11-13 h (immediate-release); 11-16 h (extended-release) · 11-15 hours'"`UNIQ--ref-00000842-QINU`"'

Other values:

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Highly route-dependent: SL bypasses first-pass; oral has extensive first-pass (used only for chronic ER preparations); transdermal predictable'"`UNIQ--ref-00000C10-QINU`"' (1) · ~25% (high first-pass) (1)

Category C (1) · Used in obstetric emergencies (uterine relaxation, severe hypertension) when needed; otherwise limited routine use.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Schedule III; REMS-restricted (Schedule I if outside the pharmaceutical channel, same molecule as illicit GHB) (1) · [[USLegal:Prescription only|Rx-only]] in US (1)