Drilldown/Medicines

None (1) · Mirabegron (1) · Valacyclovir (1)

Myrbetriq (1) · Quviviq (1) · Valtrex (1)

Dual orexin receptor antagonist (DORA) (1) · [[:Category:Anti-herpesvirus_agents|Anti-herpesvirus agent]] (1) · [[:Category:Antivirals|Antiviral]] (1) · [[:Category:Beta-3_agonists|β3 adrenergic agonist]] (1) · [[:Category:Nucleoside_analogs|Nucleoside analog (prodrug)]] (1) · [[:Category:Overactive_bladder_medications|Overactive bladder medication]] (1)

None (2) · '"`UNIQ--vote-000005D0-QINU`"' Selectivity comes from the viral-kinase-only initial phosphorylation step, which is why uninfected cells generate minimal active drug'"`UNIQ--ref-000005D1-QINU`"'. Dose-adjust by renal function; rare crystalline nephropathy with rapid IV acyclovir. (1)

Insomnia (sleep onset and/or sleep maintenance) in adults (FDA-approved Jan 2022) (1) · '"`UNIQ--vote-000005D2-QINU`"', '"`UNIQ--vote-000005D3-QINU`"', '"`UNIQ--vote-000005D4-QINU`"', '"`UNIQ--vote-000005D5-QINU`"' (1) · '"`UNIQ--vote-00000C4C-QINU`"', '"`UNIQ--vote-00000C4D-QINU`"' (1)

25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) · 25 mg PO once daily; titrate to 50 mg after 4-8 weeks if needed (1) · Initial genital herpes 1 g PO BID × 10 days; recurrent 500 mg BID × 3 days; suppression 500 mg-1 g PO daily; zoster 1 g TID × 7 days (1)

25 mg, 50 mg tablets (1) · 25, 50 mg ER tablets; 8 mg/mL granules for oral suspension (Myrbetriq Granules, pediatric) (1) · 500 mg, 1 g tablets (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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Oral (3)

Symptom improvement within weeks (1) · Symptom relief within 24-48 hours (1) · ~30 min (1)

24 hours (1) · 8 hours per dose (1) · ~7-8 hours (1)

~3 hours (acyclovir, the active metabolite); longer in renal impairment'"`UNIQ--ref-000005D6-QINU`"' (1) · ~50 hours'"`UNIQ--ref-00000C4E-QINU`"' (1) · ~8 hours (shorter than suvorexant and lemborexant) (1)

25 mg: ~29%; 50 mg: ~35%; food reduces absorption'"`UNIQ--ref-00000C4F-QINU`"' (1) · ~55% bioavailability of acyclovir after valacyclovir oral (vs ~20% from oral acyclovir directly)'"`UNIQ--ref-000005D7-QINU`"' (1) · ~62% (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; avoid (1) · Widely used in pregnancy when antiviral indicated; reassuring registry data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx, Schedule IV (US) (1) · [[USLegal:Prescription only|Rx-only]] in US (2)