Drilldown: Medicines

Levothyroxine (1) · Linagliptin (1) · Pramipexole (1) · Ropinirole (1) · Sitagliptin (1)

Januvia; with metformin Janumet/Janumet XR (1) · Mirapex (IR), Mirapex ER (1) · Requip (IR), Requip XL (extended-release) (1) · Synthroid, Levoxyl, Tirosint, Unithroid, Euthyrox (1) · Tradjenta; with metformin Jentadueto (1)

[[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (2) · [[:Category:Antiparkinsonians|Antiparkinsonian]] (2) · [[:Category:Dopamine agonists|Dopamine D2/D3 receptor agonist (non-ergot)]] (2) · [[:Category:DPP-4_inhibitors|DPP-4 inhibitor]] (2) · [[:Category:Hormone_replacement|Hormone replacement]] (1) · [[:Category:Incretin_modulators|Incretin pathway modulator]] (2) · [[:Category:Thyroid_hormones|Thyroid hormone]] (1)

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-00000762-QINU`"' Largely renally cleared, hence the eGFR-tiered dosing. Rare but well-documented signals: acute pancreatitis (uncertain causal contribution), severe joint pain, and bullous pemphigoid (class effect, especially in older Asian patients)'"`UNIQ--ref-00000763-QINU`"'. (1)

'"`UNIQ--vote-00000013-QINU`"', '"`UNIQ--vote-00000014-QINU`"' (1) · '"`UNIQ--vote-00000017-QINU`"', '"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"', '"`UNIQ--vote-0000001A-QINU`"' (1) · '"`UNIQ--vote-00000033-QINU`"', '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) · '"`UNIQ--vote-00000764-QINU`"' (1) · '"`UNIQ--vote-0000117B-QINU`"' (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) · 100 mg PO once daily (50 mg if CrCl 30-44; 25 mg if <30 or dialysis) (1) · 5 mg PO once daily (no renal dose adjustment, unlike sitagliptin) (1) · Parkinson disease: 0.125 mg PO TID, titrate weekly to maintenance ~1.5 mg TID. Restless legs syndrome: 0.125 mg PO 2-3 hours before bedtime, titrate to 0.5 mg/day if needed (1) · Parkinson disease: 0.25 mg PO TID, titrate weekly. Restless legs syndrome: 0.25 mg PO 1-3 hours before bedtime, titrate to 4 mg/day if needed (1)

25, 50, 100 mg tablets; combination tablets with metformin (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 tablets; combination with metformin (1) · IR tablets 0.125, 0.25, 0.5, 0.75, 1, 1.5 mg; ER tablets 0.375, 0.75, 1.5, 2.25, 3, 3.75, 4.5 mg (1) · IR tablets 0.25, 0.5, 1, 2, 3, 4, 5 mg; XL tablets 2, 4, 6, 8, 12 mg (1)

100 mg/d (1) · 24 mg/day (Parkinson disease); 4 mg/day (restless legs syndrome) (1) · 4.5 mg/day (Parkinson disease); 0.5 mg/day (restless legs syndrome) (1) · 5 mg/d (1) · No fixed maximum; titrated to TSH target (1)

IV (1) · Oral (5)

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 hours (2) · Steady-state at 4-6 weeks (1) · TID dosing (IR); once-daily (ER) (1) · TID dosing (IR); once-daily (XL) (1)

8-12 hours (longer in elderly and renal impairment)'"`UNIQ--ref-0000001B-QINU`"' (1) · ~12 hours (effective); terminal much longer'"`UNIQ--ref-0000117C-QINU`"' (1) · ~12.4 hours'"`UNIQ--ref-00000765-QINU`"' (1) · ~6 hours'"`UNIQ--ref-00000015-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) · >90% (oral)'"`UNIQ--ref-0000001C-QINU`"' (1) · ~30% (oral)'"`UNIQ--ref-0000117D-QINU`"' (1) · ~55% (oral)'"`UNIQ--ref-00000016-QINU`"' (1) · ~87% (oral)'"`UNIQ--ref-00000766-QINU`"' (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; switch to insulin where feasible.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (2) · Limited human data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data; rarely indicated in pregnancy given the typical patient population.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

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