Drilldown: Medicines

None (2) · Bisoprolol (1) · Diclofenac (sodium, potassium, epolamine; multiple salt forms) (1) · Levothyroxine (1) · Terazosin (1) · Thyroid (desiccated) (1) · Vardenafil (1)

Armour Thyroid, NP Thyroid, Nature-Throid, WP Thyroid (1) · Belsomra (1) · Hytrin (US brand discontinued); mostly generic (1) · Levitra, Staxyn (1) · Synthroid, Levoxyl, Tirosint, Unithroid, Euthyrox (1) · Trintellix (US), Brintellix (formerly) (1) · Voltaren (IR oral, topical gel), Cataflam (potassium IR), Cambia (oral powder, migraine), Zorvolex (low-dose), Pennsaid (topical 2% solution), Flector (transdermal patch), Solaraze (3% gel for actinic keratosis) (1) · Zebeta (1)

Beta Blocker (1) · Cardioselective (β1) (1) · Dual orexin receptor antagonist (DORA) (1) · Multimodal antidepressant: SERT inhibitor + 5HT1A agonist + 5HT1B partial agonist + 5HT3/5HT7 antagonist (1) · PDE5 Inhibitor (1) · the first approved (1) · [[:Category:Alpha-1_blockers|Alpha-1 adrenergic blocker (non-selective)]] (1) · [[:Category:Analgesics|Analgesic]] (1) · [[:Category:Antihypertensives|Antihypertensive]] (1) · [[:Category:BPH_treatments|Benign prostatic hyperplasia treatment]] (1) · [[:Category:Hormone_replacement|Hormone replacement]] (2) · [[:Category:NSAIDs|Non-steroidal anti-inflammatory (NSAID)]] (1) · [[:Category:Thyroid_hormones|Thyroid hormone]] (2)

None (2) · Competitive antagonist at OX1R and OX2R. First-in-class DORA. Receptor dissociation slower than lemborexant or daridorexant. (1) · Highly β1-selective adrenergic antagonist. Greater selectivity than metoprolol or atenolol. (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) · Synthetic T4 (thyroxine); peripherally deiodinated to T3 (triiodothyronine), the active hormone. '"`UNIQ--vote-00000031-QINU`"' Narrow therapeutic index; brand-to-generic switches can shift TSH and require re-titration'"`UNIQ--ref-00000032-QINU`"'. (1) · '"`UNIQ--vote-00000016-QINU`"' Brand-to-brand and lot-to-lot variability in T3:T4 ratio is greater than with synthetic levothyroxine, which is why endocrine guidelines prefer the synthetic'"`UNIQ--ref-00000017-QINU`"'. (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)

Insomnia (sleep onset and/or maintenance) in adults (FDA-approved August 2014). Also studied for insomnia in mild-moderate Alzheimer disease. (1) · Major depressive disorder in adults (FDA-approved 2013). Notable for evidence of cognitive benefit (processing speed) that distinguishes it from other antidepressants. (1) · '"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"' (1) · '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"', '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"', '"`UNIQ--vote-00000025-QINU`"', '"`UNIQ--vote-00000026-QINU`"', '"`UNIQ--vote-00000027-QINU`"', '"`UNIQ--vote-00000028-QINU`"' (1) · '"`UNIQ--vote-00000033-QINU`"', '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) · '"`UNIQ--vote-00000636-QINU`"', '"`UNIQ--vote-00000637-QINU`"', '"`UNIQ--vote-00000638-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) · 1.6 mcg/kg/d in young healthy adults; 25-50 mcg/d in elderly or cardiac disease, titrated by TSH at 6-8 weeks (1) · 10 mg PO 30 min before bedtime (with ≥7 hours of sleep planned) (1) · 10 mg PO once daily; may increase to 20 mg as tolerated, or decrease to 5 mg if needed (1) · 10 mg ~1 h before sexual activity (1) · 2.5–5 mg daily (HTN); 1.25 mg daily (HFrEF, slow titration) (1) · 30 mg PO daily (1/2 grain); titrate by TSH at 6-8 weeks; 60 mg desiccated thyroid is approximately equivalent to 88-100 mcg levothyroxine (1) · IR oral 50 mg PO TID or 75 mg BID. Voltaren 1% gel: apply 2-4 g to affected area QID. Pennsaid 2%: 40 drops to knee BID. Flector patch: every 12 hours (1)

1, 2, 5, 10 mg capsules and tablets (1) · 15, 30, 60, 90, 120, 180, 240, 300 mg tablets (1/4 to 5 grains; 1 grain = 60 mg) (1) · 2.5, 5, 10, 20 mg tabs (Levitra); 10 mg ODT (Staxyn) (1) · 25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200, 300 mcg tablets; oral capsule and IV/IM also available (1) · 5 mg, 10 mg, 15 mg, 20 mg tablets (1) · 5 mg, 10 mg, 20 mg tablets (1) · 5, 10 mg tabs (1) · IR tablets 25, 50 mg; ER tablets 100 mg; Cataflam IR 50 mg; Zorvolex 18, 35 mg; Voltaren gel 1%; Pennsaid 2% topical solution; Flector transdermal patch; Solaraze 3% gel; Cambia oral powder 50 mg (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

Other values:

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IV (1) · Oral (8) · oral powder (Cambia for migraine) (1) · topical (1) · transdermal (1)

1–2 h (1) · 30-60 minutes (oral); slower for topical (1) · BP and symptomatic LUTS improvement within 1-2 weeks (1) · TSH normalization 4-8 weeks (1) · TSH normalization 4-8 weeks; symptomatic improvement weeks to months (1) · Typical antidepressant 4-6 week onset (1) · ~30 min (2)

24 h (1) · 24 hours (1) · 4–5 h (1) · 6-8 hours (IR oral); 12-24 hours (ER) (1) · Daily dosing (1) · Steady-state at 4-6 weeks (2) · ~7-8 hours (1)

1-2 hours (parent compound)'"`UNIQ--ref-00000029-QINU`"' (1) · 4–5 h (1) · 9–12 h (1) · T4 ~7 days; T3 ~1 day'"`UNIQ--ref-0000001A-QINU`"' (1) · ~12 hours (1) · ~12 hours'"`UNIQ--ref-0000111F-QINU`"' (1) · ~66 hours (1) · ~7 days (euthyroid); longer in hypothyroidism (~9-10 days), shorter in hyperthyroidism'"`UNIQ--ref-00000036-QINU`"' (1)

40-80% (oral); reduced by food, calcium, iron, PPIs, fiber; take fasting with water'"`UNIQ--ref-00000037-QINU`"' (1) · >90% (oral; not significantly affected by food)'"`UNIQ--ref-00001120-QINU`"' (1) · Variable; reduced by food, calcium, iron, PPIs'"`UNIQ--ref-0000001B-QINU`"' (1) · ~15% (extensive hepatic first-pass) (1) · ~50-60% (oral; substantial first-pass metabolism)'"`UNIQ--ref-0000002A-QINU`"' (1) · ~75% (1) · ~82% (1) · ~90% (low first-pass) (1)

Avoid from 20 weeks gestation onward per FDA's 2020 expanded NSAID warning (fetal renal dysfunction, oligohydramnios); contraindicated from 30 weeks (risk of premature ductus arteriosus closure)'"`UNIQ--ref-0000002B-QINU`"' (1) · Category B (1) · Category C (1) · First-line in pregnancy; dose typically increased 25-30% due to estrogen-driven rise in TBG and fetal demand. Lactation safe at physiologic doses.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data; avoid (1) · Limited data; weigh benefits/risks (1) · Synthetic levothyroxine is the standard-of-care in pregnancy; desiccated thyroid use in pregnancy is not well studied.'"`UNIQ--ref-0000001C-QINU`"' (1)

Rx (1) · Rx, Schedule IV (US) (1) · Rx-only in US (2) · [[USLegal:Prescription only|Rx-only]] for oral and most topical formulations in US; Voltaren Arthritis Pain 1% gel switched to [[USLegal:Over-the-counter|OTC]] in 2020 (1) · [[USLegal:Prescription only|Rx-only]] in US (3)