Drilldown: Medicines

Brimonidine (1) · Bumetanide (1) · Dorzolamide (1) · Levothyroxine (1) · Thyroid (desiccated) (1)

Alphagan P (ophthalmic glaucoma), Mirvaso (topical rosacea) (1) · Armour Thyroid, NP Thyroid, Nature-Throid, WP Thyroid (1) · Bumex (1) · Synthroid, Levoxyl, Tirosint, Unithroid, Euthyrox (1) · Trusopt; with timolol as Cosopt (1)

[[:Category:Alpha-2_agonists|Alpha-2 adrenergic agonist]] (1) · [[:Category:Carbonic_anhydrase_inhibitors|Carbonic anhydrase inhibitor (topical)]] (1) · [[:Category:Glaucoma_medications|Glaucoma medication]] (2) · [[:Category:Hormone_replacement|Hormone replacement]] (2) · [[:Category:Loop_diuretics|Loop diuretic]] (1) · [[:Category:Ocular_hypotensive_agents|Ocular hypotensive agent]] (2) · [[:Category:Thyroid_hormones|Thyroid hormone]] (2)

None (3) · 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-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"' (1) · '"`UNIQ--vote-00000033-QINU`"', '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) · '"`UNIQ--vote-00000B08-QINU`"', '"`UNIQ--vote-00000B09-QINU`"' (1) · '"`UNIQ--vote-00000DDF-QINU`"', '"`UNIQ--vote-00000DE0-QINU`"', '"`UNIQ--vote-00000DE1-QINU`"', '"`UNIQ--vote-00000DE2-QINU`"' (1) · '"`UNIQ--vote-000010CE-QINU`"', '"`UNIQ--vote-000010CF-QINU`"', '"`UNIQ--vote-000010D0-QINU`"' (1)

0.5-1 mg PO/IV once or twice daily; titrate to clinical response. Approximate equipotency: bumetanide 1 mg ≈ furosemide 40 mg ≈ torsemide 20 mg (1) · 1 drop in affected eye(s) TID (monotherapy); BID with timolol (Cosopt) (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) · 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) · Ophthalmic 1 drop in affected eye(s) TID; topical Mirvaso 0.33% gel applied to face daily (1)

0.1%, 0.15%, 0.2% ophthalmic solutions; 0.33% topical gel; combinations with timolol (Combigan) and brinzolamide (Simbrinza) (1) · 0.5, 1, 2 mg tablets; 0.25 mg/mL IV (1) · 15, 30, 60, 90, 120, 180, 240, 300 mg tablets (1/4 to 5 grains; 1 grain = 60 mg) (1) · 2% ophthalmic solution (Trusopt); 2%/0.5% fixed combination with timolol (Cosopt, Cosopt PF) (1) · 25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200, 300 mcg tablets; oral capsule and IV/IM also available (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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IM (1) · IV (2) · Oral (3) · Topical ophthalmic (2) · topical skin (1)

IOP lowering at 1 hour; max at 2-3 hours (1) · IOP lowering at 2 hours; max at 4 hours (1) · PO 30-60 minutes; IV minutes (1) · TSH normalization 4-8 weeks (1) · TSH normalization 4-8 weeks; symptomatic improvement weeks to months (1)

4-6 hours (1) · 8-12 hours (1) · 8-12 hours (TID dosing needed) (1) · Steady-state at 4-6 weeks (2)

1-1.5 hours'"`UNIQ--ref-00000DE3-QINU`"' (1) · T4 ~7 days; T3 ~1 day'"`UNIQ--ref-0000001A-QINU`"' (1) · ~3 hours'"`UNIQ--ref-000010D1-QINU`"' (1) · ~4 months in erythrocytes (carbonic anhydrase binding in red cells; not relevant to topical IOP duration)'"`UNIQ--ref-00000B0A-QINU`"' (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) · Topical with measurable systemic absorption (small CA inhibition observed clinically with chronic use)'"`UNIQ--ref-00000B0B-QINU`"' (1) · Topical; clinically meaningful systemic absorption can produce systemic α2 effects (somnolence, hypotension), especially in children'"`UNIQ--ref-000010D2-QINU`"' (1) · Variable; reduced by food, calcium, iron, PPIs'"`UNIQ--ref-0000001B-QINU`"' (1) · ~80-95% (oral; more reliable than furosemide, comparable to torsemide)'"`UNIQ--ref-00000DE4-QINU`"' (1)

Avoid where possible; class concerns as for other loop diuretics.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (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; weigh against alternatives.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Synthetic levothyroxine is the standard-of-care in pregnancy; desiccated thyroid use in pregnancy is not well studied.'"`UNIQ--ref-0000001C-QINU`"' (1)

[[USLegal:Prescription only|Rx-only]] in US (5)