Drilldown: Medicines

Melatonin (N-acetyl-5-methoxytryptamine) (1) · Pramipexole (1) · Ropinirole (1)

Mirapex (IR), Mirapex ER (1) · Multiple OTC dietary supplement formulations (1) · Requip (IR), Requip XL (extended-release) (1)

[[:Category:Antiparkinsonians|Antiparkinsonian]] (2) · [[:Category:Chronobiotics|Chronobiotic (circadian phase regulator)]] (1) · [[:Category:Dopamine agonists|Dopamine D2/D3 receptor agonist (non-ergot)]] (2) · [[:Category:Melatonin receptor agonists|Melatonin receptor agonist]] (1) · [[:Category:Sleep aids|Sleep aid]] (1)

None (3)

'"`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-0000001B-QINU`"', '"`UNIQ--vote-0000001C-QINU`"', '"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"', '"`UNIQ--vote-00000020-QINU`"' (1)

0.5-3 mg PO 30-60 minutes before bedtime. Some patients respond to micro-doses (0.3 mg) without additional benefit at higher doses. For circadian phase shifting, timing relative to dim-light melatonin onset matters more than absolute dose (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)

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) · OTC tablets, sublingual tablets, gummies, liquid, extended-release tablets and capsules; common strengths 0.5, 1, 3, 5, 10 mg (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) · Not formally established (dietary supplement); doses above ~3-5 mg show no additional efficacy but increase next-day sedation risk (1)

Oral (3) · sublingual (1)

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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3-4 hours (1) · TID dosing (IR); once-daily (ER) (1) · TID dosing (IR); once-daily (XL) (1)

30-50 minutes (short)'"`UNIQ--ref-00000021-QINU`"' (1) · 8-12 hours (longer in elderly and renal impairment)'"`UNIQ--ref-0000001B-QINU`"' (1) · ~6 hours'"`UNIQ--ref-00000015-QINU`"' (1)

>90% (oral)'"`UNIQ--ref-0000001C-QINU`"' (1) · ~15% (oral; highly variable due to extensive and variable first-pass metabolism)'"`UNIQ--ref-00000022-QINU`"' (1) · ~55% (oral)'"`UNIQ--ref-00000016-QINU`"' (1)

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; endogenous hormone, but supplemental pharmacological doses are not well characterized in pregnancy.<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:Over-the-counter|OTC]] dietary supplement in the US ('''not FDA-regulated as a medicine'''; multiple studies show OTC products contain 50-470% of labeled melatonin content); [[USLegal:Prescription only|Rx-only]] in the EU and UK (1) · [[USLegal:Prescription only|Rx-only]] in US (2)