Drilldown: Medicines

Niacin (nicotinic acid, vitamin B3) (1) · Pramipexole (1) · Ropinirole (1)

Mirapex (IR), Mirapex ER (1) · Niaspan (ER, Rx), Niacor (IR, Rx); huge OTC presence (1) · Requip (IR), Requip XL (extended-release) (1)

[[:Category:Antiparkinsonians|Antiparkinsonian]] (2) · [[:Category:B-vitamins|B-vitamin]] (1) · [[:Category:Dopamine agonists|Dopamine D2/D3 receptor agonist (non-ergot)]] (2) · [[:Category:Lipid-lowering_agents|Lipid-lowering agent]] (1) · [[:Category:Vitamins|Vitamin]] (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-00001035-QINU`"', '"`UNIQ--vote-00001036-QINU`"', '"`UNIQ--vote-00001037-QINU`"' (1)

Niaspan ER 500 mg PO at bedtime, titrate weekly to 1-2 g/d; flushing-protective aspirin 30-60 minutes before dose; pellagra replacement 100-500 mg/d (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 IR niacin 50-500 mg tablets; Niaspan ER 500, 750, 1000 mg tablets; "no-flush" niacin (inositol hexaniacinate, lacks evidence) (1)

2 g/d (Niaspan); higher off-label use historical (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)

Oral (3)

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 (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) · ~1 hour (IR niacin); ER formulations extend functional duration'"`UNIQ--ref-00001038-QINU`"' (1) · ~6 hours'"`UNIQ--ref-00000015-QINU`"' (1)

>90% (oral)'"`UNIQ--ref-0000001C-QINU`"' (1) · High (oral; food enhances)'"`UNIQ--ref-00001039-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; 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) · Pharmacologic doses generally avoided in pregnancy; vitamin doses fine.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (low-dose, dietary supplement) and [[USLegal:Prescription only|Rx-only]] (Niaspan ER) in US (1) · [[USLegal:Prescription only|Rx-only]] in US (2)