Drilldown: Medicines

Desvenlafaxine (succinate) (1) · Paroxetine (HCl; mesylate as Pexeva) (1) · Valacyclovir (1)

Paxil (IR), Paxil CR (controlled-release), Brisdelle (low-dose for menopausal vasomotor symptoms), Pexeva (paroxetine mesylate) (1) · Pristiq (1) · Valtrex (1)

[[:Category:Anti-herpesvirus_agents|Anti-herpesvirus agent]] (1) · [[:Category:Antidepressants|Antidepressant]] (2) · [[:Category:Antivirals|Antiviral]] (1) · [[:Category:Anxiolytics|Anxiolytic]] (1) · [[:Category:Nucleoside_analogs|Nucleoside analog (prodrug)]] (1) · [[:Category:SNRIs|Serotonin-norepinephrine reuptake inhibitor (SNRI)]] (1) · [[:Category:SSRIs|Selective serotonin reuptake inhibitor (SSRI)]] (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)

'"`UNIQ--vote-00000017-QINU`"', '"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"' (1) · '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"', '"`UNIQ--vote-00000025-QINU`"', '"`UNIQ--vote-00000026-QINU`"', '"`UNIQ--vote-00000027-QINU`"', '"`UNIQ--vote-00000028-QINU`"', '"`UNIQ--vote-00000029-QINU`"', '"`UNIQ--vote-0000002A-QINU`"' (1) · '"`UNIQ--vote-000005D2-QINU`"', '"`UNIQ--vote-000005D3-QINU`"', '"`UNIQ--vote-000005D4-QINU`"', '"`UNIQ--vote-000005D5-QINU`"' (1)

50 mg PO once daily ('''no titration required''', distinguishing it favorably from venlafaxine) (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) · MDD/GAD: 20 mg PO once daily. Panic disorder: 10 mg titrating to 40 mg. OCD: 20 mg titrating to 40-60 mg. CR: 25 mg/day. Brisdelle: 7.5 mg at bedtime for hot flashes (1)

500 mg, 1 g tablets (1) · ER tablets 25, 50, 100 mg (1) · IR tablets 10, 20, 30, 40 mg; CR tablets 12.5, 25, 37.5 mg; oral suspension 10 mg/5 mL; Brisdelle capsules 7.5 mg (1)

3 g/d (zoster) (1) · 50 mg/day (IR); 62.5 mg/day (CR); 60 mg/day (OCD) (1) · 50 mg/day (no efficacy benefit shown for higher doses despite the 100 mg strength being available) (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:

Search

24 hours (1) · 24 hours (once-daily dosing) (1) · 8 hours per dose (1)

~11 hours'"`UNIQ--ref-0000001A-QINU`"' (1) · ~21 hours (with nonlinear pharmacokinetics from CYP2D6 autoinhibition)'"`UNIQ--ref-0000002B-QINU`"' (1) · ~3 hours (acyclovir, the active metabolite); longer in renal impairment'"`UNIQ--ref-000005D6-QINU`"' (1)

Highly variable due to saturable first-pass metabolism'"`UNIQ--ref-0000002C-QINU`"' (1) · ~55% bioavailability of acyclovir after valacyclovir oral (vs ~20% from oral acyclovir directly)'"`UNIQ--ref-000005D7-QINU`"' (1) · ~80% (oral)'"`UNIQ--ref-0000001B-QINU`"' (1)

'''Among the least preferred SSRIs in pregnancy.''' Observational signal for cardiac malformations (atrial and ventricular septal defects) with first-trimester exposure, and the most severe neonatal adaptation syndrome of any SSRI with third-trimester exposure'"`UNIQ--ref-0000002D-QINU`"' (1) · Observational signal for neonatal adaptation syndrome with late-pregnancy exposure (SNRI class effect).<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (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)

[[USLegal:Prescription only|Rx-only]] in US (1) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-0000001C-QINU`"' (1) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-0000002E-QINU`"' (1)