Drilldown: Medicines

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Medicines (732)

Medicines > duration

: 24 hours (once-daily dosing)

or 6-8 hours

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Cephalexin (1) · Citalopram (1) · Clindamycin (1) · Cyproheptadine (hydrochloride) (1) · Donepezil (1) · Erythromycin (1) · Escitalopram (1) · Lorazepam (1) · Paroxetine (HCl; mesylate as Pexeva) (1) · Penicillin V (phenoxymethylpenicillin) (1) · Phenazopyridine (1) · Torsemide (1)

Aricept (oral), Adlarity (transdermal patch) (1) · Ativan (oral, injectable), Loreev XR (1) · Celexa (1) · Cleocin (oral, IV); Clindesse, Cleocin (vaginal); Clindets, Cleocin T (topical) (1) · Demadex, Soaanz (1) · E.E.S., EryPed, Ery-Tab, PCE, Erythrocin (lactobionate IV); topical Erygel, Akne-Mycin; ophthalmic ointment (1) · Keflex, Daxbia, Panixine; mostly prescribed generically (1) · Lexapro (1) · Paxil (IR), Paxil CR (controlled-release), Brisdelle (low-dose for menopausal vasomotor symptoms), Pexeva (paroxetine mesylate) (1) · Pen-V, Veetids (mostly generic) (1) · Periactin (US brand discontinued; generic widely available) (1) · Pyridium (Rx), Azo Standard, AZO Urinary Pain Relief (OTC) (1)

None (8) · '"`UNIQ--vote-00000017-QINU`"' Anticholinergic and sedating, with the standard first-generation antihistamine Beers-list concerns in elderly patients'"`UNIQ--ref-00000018-QINU`"'. (1) · '"`UNIQ--vote-0000001D-QINU`"' CYP2C19 + CYP3A4 metabolism, with CPIC PGx guidance: poor CYP2C19 metabolizers have ~3-fold higher exposure and benefit from a lower starting dose; ultrarapid metabolizers may have inadequate response'"`UNIQ--ref-0000001E-QINU`"'. (2) · '"`UNIQ--vote-00000B40-QINU`"' The TRANSFORM-HF trial (2023) found no all-cause mortality difference between torsemide and furosemide in heart failure, although torsemide remains pharmacologically preferred where furosemide oral absorption is unreliable'"`UNIQ--ref-00000B41-QINU`"'. (1)

10 mg PO once daily; titrate to 20 mg/day after 1-2 weeks if needed (1) · 10-20 mg PO/IV once daily; titrate by clinical response. 1:1 IV to PO conversion (unlike furosemide's 1:2) (1) · 100-200 mg PO TID after meals × no more than 2 days when used with concurrent antibiotic (1) · 20 mg PO once daily; titrate to 40 mg/day after 1 week if tolerated. Elderly (>60) and hepatic impairment: 20 mg/day ceiling (1) · 250-500 mg PO every 6-8 hours (1) · 250-500 mg PO QID; 7.5-12.5 mg/kg IV q6h; topical and ophthalmic per formulation (1) · 5 mg PO once daily at bedtime; titrate to 10 mg/day after 4-6 weeks. Severe Alzheimer disease: may escalate to 23 mg/day. Adlarity patch: 5 or 10 mg/day applied weekly (1) · 500 mg PO every 6 hours, or 250 mg every 6 hours for mild infections (1) · Allergy: 4 mg PO TID. Serotonin syndrome: 12 mg loading dose PO or by nasogastric tube, then 2 mg every 2 hours until clinical improvement. Appetite stimulation: 2-4 mg PO TID-QID (1) · Anxiety: 0.5-1 mg PO BID-TID. Insomnia: 1-2 mg PO at bedtime. Status epilepticus: 4 mg IV (adult), repeat after 5-10 minutes if needed. Acute agitation: 1-2 mg IM (1) · MDD/GAD: 20 mg PO once daily. Panic disorder: 10 mg titrating to 40 mg. OCD: 20 mg titrating to 40-60 mg. CR: 25 mg/day. Brisdelle: 7.5 mg at bedtime for hot flashes (1) · Oral 300-450 mg PO QID; IV 600-900 mg q8h; topical 1% solution/gel BID; vaginal 100 mg ovule × 3 days or 2% cream × 7 days (1)

250 mg, 500 mg tablets; 125 mg/5 mL, 250 mg/5 mL suspension (1) · 250 mg, 500 mg, 750 mg capsules; 250 mg/5 mL, 125 mg/5 mL suspension; tablets (1) · 250, 500 mg base or stearate tablets; ER tablets; ethyl succinate 200 mg/5 mL suspension; 500 mg, 1 g IV (lactobionate); 2% topical solution/gel; 0.5% ophthalmic ointment (1) · 5, 10, 20, 100 mg tablets; 10 mg/mL IV (1) · 75, 150, 300 mg capsules; 75 mg/5 mL solution; 150 mg/mL IV; 1% topical; 2% vaginal cream (1) · 95 mg (OTC), 99.5 mg, 100 mg, 200 mg tablets (1) · IR tablets 10, 20, 30, 40 mg; CR tablets 12.5, 25, 37.5 mg; oral suspension 10 mg/5 mL; Brisdelle capsules 7.5 mg (1) · Oral tablets 5, 10, 23 mg; ODT 5, 10 mg; Adlarity transdermal patch 5, 10 mg/day (weekly application) (1) · Tablets 0.5, 1, 2 mg; oral concentrate 2 mg/mL; injection 2 mg/mL and 4 mg/mL; Loreev XR capsules 1, 2, 3 mg (1) · Tablets 10, 20, 40 mg; oral solution 10 mg/5 mL (1) · Tablets 4 mg; oral syrup 2 mg/5 mL (1) · Tablets 5, 10, 20 mg; oral solution 1 mg/mL (1)

'''20 mg/day in adults >60 years''' per FDA's 2011-2012 QT-prolongation warning; 40 mg/day in adults ≤60 (1) · 10 mg/day (anxiety, oral) (1) · 2 g/d typical (1) · 20 mg/day (adult); 10 mg/day in elderly and in hepatic impairment (1) · 200 mg/d typical practical ceiling (1) · 23 mg/day (1) · 32 mg/day adult; weight-based pediatric ceiling (1) · 4 g/d (1) · 4 g/d (rarely tolerated due to GI effects) (1) · 4.8 g/d (IV severe infection) (1) · 50 mg/day (IR); 62.5 mg/day (CR); 60 mg/day (OCD) (1) · Limit to 48 hours of use to avoid hemolysis and methemoglobinemia (1)

IM (1) · intramuscular (1) · intravenous (1) · IV (3) · ophthalmic (1) · Oral (12) · topical (2) · transdermal (1) · vaginal (1)

30-60 minutes (1) · 30-60 minutes (oral); 5 minutes (IV); 15-30 minutes (IM) (1) · Antidepressant effect emerges over 1-2 weeks (1) · Antidepressant effect emerges over 1-2 weeks; full clinical effect 4-6 weeks (1) · Antidepressant effect over 1-2 weeks; full clinical effect 4-6 weeks (1) · Cognitive effect emerges gradually over weeks to months; ceiling effect at the therapeutic dose (1) · Hours (4) · PO 1 hour; IV 10 minutes (1) · Symptom relief within 30 minutes (1)

12-15 hours (intermediate); '''no active metabolites''' (key clinical feature)'"`UNIQ--ref-00000023-QINU`"' (1) · 27-32 hours'"`UNIQ--ref-00000026-QINU`"' (1) · 3-4 hours (similar between PO and IV due to high oral bioavailability)'"`UNIQ--ref-00000B46-QINU`"' (1) · 8-16 hours'"`UNIQ--ref-0000001E-QINU`"' (1) · ~1 hour'"`UNIQ--ref-000004F2-QINU`"' (1) · ~1.5-2 hours'"`UNIQ--ref-00000D3E-QINU`"' (1) · ~2.5-3 hours'"`UNIQ--ref-00001442-QINU`"' (1) · ~21 hours (with nonlinear pharmacokinetics from CYP2D6 autoinhibition)'"`UNIQ--ref-0000002B-QINU`"' (1) · ~30-60 minutes'"`UNIQ--ref-00000E76-QINU`"' (1) · ~35 hours'"`UNIQ--ref-00000026-QINU`"' (1) · ~7-10 hours (variable; longer in renal impairment)'"`UNIQ--ref-00000FB4-QINU`"' (1) · ~70 hours (long, supports once-daily dosing without peak-trough variation)'"`UNIQ--ref-0000001B-QINU`"' (1)

90% (oral; food delays but does not reduce absorption)'"`UNIQ--ref-000004F3-QINU`"' (1) · High (oral)'"`UNIQ--ref-00000FB5-QINU`"' (1) · Highly variable due to saturable first-pass metabolism'"`UNIQ--ref-0000002C-QINU`"' (1) · ~100% (oral)'"`UNIQ--ref-0000001C-QINU`"' (1) · ~30-65% (oral; acid-labile, hence enteric-coated formulations; food affects absorption variably)'"`UNIQ--ref-00000D3F-QINU`"' (1) · ~60% (oral; phenoxymethyl modification makes it acid-stable, unlike penicillin G which is destroyed by gastric acid)'"`UNIQ--ref-00000E77-QINU`"' (1) · ~80% (oral)'"`UNIQ--ref-00000027-QINU`"' (2) · ~80% (oral; predictable absorption — a substantive practical advantage over furosemide whose oral absorption is 10-100% variable)'"`UNIQ--ref-00000B47-QINU`"' (1) · ~90% (oral)'"`UNIQ--ref-00000024-QINU`"' (1) · ~90% (oral)'"`UNIQ--ref-00001443-QINU`"' (1) · ~95% (oral)'"`UNIQ--ref-0000001F-QINU`"' (1)

OTC (lower doses) and [[USLegal:Prescription only|Rx-only]] (higher doses) in US (1) · OTC (ophthalmic ointment) and [[USLegal:Prescription only|Rx-only]] (other forms) in US (1) · [[USLegal:Prescription only|Rx-only]] in US (5) · [[USLegal:Prescription only|Rx-only]] in US. Carries a '''Boxed Warning''' for Clostridioides difficile colitis (one of the most C. difficile-inducing antibiotic classes)'"`UNIQ--ref-00001444-QINU`"' (1) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-00000028-QINU`"' (2) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-0000002E-QINU`"' (1) · [[USLegal:Schedule IV|Schedule IV controlled substance]] in US. Carries the benzodiazepine class '''Boxed Warning''' for risk of fatal respiratory depression, coma, and death when combined with opioids'"`UNIQ--ref-00000025-QINU`"' (1)