Drilldown: Medicines

Azithromycin (1) · Cholecalciferol (vitamin D3) (1) · Fluconazole (1)

Diflucan (1) · Many OTC; Rx 50,000 IU also available (1) · Zithromax, Z-Pak, Zmax (1)

[[:Category:Antifungals|Antifungal (triazole)]] (1) · [[:Category:Azalides|Azalide]] (1) · [[:Category:Fat-soluble_vitamins|Fat-soluble vitamin]] (1) · [[:Category:Macrolide_antibiotics|Macrolide antibiotic]] (1) · [[:Category:Triazoles|Triazole]] (1) · [[:Category:Vitamin_D_analogs|Vitamin D analog]] (1)

None (2) · '"`UNIQ--vote-0000042C-QINU`"' D3 is more potent than D2 at raising and sustaining serum 25(OH)D per dose, and is the more common OTC formulation; D2 remains the dominant Rx 50,000 IU formulation in the US for historical reasons. (1)

'"`UNIQ--vote-000003F6-QINU`"', '"`UNIQ--vote-000003F7-QINU`"', '"`UNIQ--vote-000003F8-QINU`"', '"`UNIQ--vote-000003F9-QINU`"', '"`UNIQ--vote-000003FA-QINU`"', '"`UNIQ--vote-000003FB-QINU`"' (1) · '"`UNIQ--vote-0000042D-QINU`"', '"`UNIQ--vote-0000042E-QINU`"', '"`UNIQ--vote-0000042F-QINU`"', '"`UNIQ--vote-00000430-QINU`"' (1) · '"`UNIQ--vote-00000A42-QINU`"', '"`UNIQ--vote-00000A43-QINU`"', '"`UNIQ--vote-00000A44-QINU`"', '"`UNIQ--vote-00000A45-QINU`"', '"`UNIQ--vote-00000A46-QINU`"' (1)

500 mg PO day 1, then 250 mg PO daily days 2-5 (Z-Pak); 1 g PO single dose for chlamydia; pediatric dosing 10 mg/kg day 1, 5 mg/kg days 2-5 (1) · Maintenance 800-2,000 IU PO daily; deficiency replacement 50,000 IU PO weekly for 8-12 weeks then maintenance, or equivalent daily dosing 5,000-10,000 IU/d (1) · Vulvovaginal: 150 mg PO single dose; oropharyngeal: 200 mg PO day 1, then 100 mg daily ×14 days; invasive candidiasis: 800 mg load, then 400 mg PO/IV daily; cryptococcal meningitis: 400-800 mg/d (1)

250 mg, 500 mg, 600 mg tablets; 100, 200 mg/5 mL suspension; 2 g ER suspension (Zmax); 500 mg IV (1) · 50, 100, 150, 200 mg tablets; 10, 40 mg/mL oral suspension; 2 mg/mL IV (1) · OTC 400, 1,000, 2,000, 5,000 IU softgels and tablets; Rx 50,000 IU capsules; liquid drops 400-2,000 IU/drop (1)

500 mg/d (typical regimen); single 2 g for Zmax; 2 g for select STIs (1) · 800 mg/d (severe invasive disease) (1) · No strict; Institute of Medicine UL 4,000 IU/d in adults for chronic use (1)

for severe malabsorption) (1) · IM (rare (1) · IV (2) · 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) · Long; fat-soluble storage in adipose (1) · Tissue half-life supports once-daily and post-treatment effect (1)

~24 hours (parent); ~15 days (25(OH)D); tissue stores months (1) · ~30 hours (long, supports once-daily dosing and substantial drug-interaction window after discontinuation)'"`UNIQ--ref-00000A47-QINU`"' (1) · ~68 hours (terminal; reflects deep tissue accumulation, much longer than plasma)'"`UNIQ--ref-000003FC-QINU`"' (1)

>90% (oral; not affected by food or gastric pH — a major practical advantage over itraconazole)'"`UNIQ--ref-00000A48-QINU`"' (1) · ~37% (oral; food reduces absorption modestly)'"`UNIQ--ref-000003FD-QINU`"' (1) · ~75% (oral; absorption improved with fat-containing meal) (1)

None (1) · Generally considered safe; commonly used in pregnancy when macrolide indicated.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Safe at replacement doses; deficiency is itself a risk in pregnancy and lactation.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (most) and [[USLegal:Prescription only|Rx-only]] (50,000 IU) in US (1) · [[USLegal:Prescription only|Rx-only]] in US (2)