Drilldown: Medicines

Flibanserin (1) · Losartan (1) · Sitagliptin (1) · Valacyclovir (1)

Addyi (1) · Cozaar (1) · Januvia; with metformin Janumet/Janumet XR (1) · Valtrex (1)

Multimodal serotonergic; HSDD treatment (1) · [[:Category:Angiotensin_receptor_blockers|Angiotensin receptor blocker (ARB)]] (1) · [[:Category:Anti-herpesvirus_agents|Anti-herpesvirus agent]] (1) · [[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (1) · [[:Category:Antihypertensives|Antihypertensive]] (1) · [[:Category:Antivirals|Antiviral]] (1) · [[:Category:DPP-4_inhibitors|DPP-4 inhibitor]] (1) · [[:Category:Incretin_modulators|Incretin pathway modulator]] (1) · [[:Category:Nucleoside_analogs|Nucleoside analog (prodrug)]] (1)

5-HT1A agonist, 5-HT2A antagonist, with weaker activity at D4 and other receptors. Net effect involves enhanced prefrontal dopaminergic/noradrenergic tone with decreased serotonergic inhibition of sexual desire. (1) · '"`UNIQ--vote-000000B6-QINU`"' Active metabolite EXP3174 is ~10-40-fold more potent than the parent and accounts for most of the antihypertensive effect; CYP2C9 polymorphism affects conversion'"`UNIQ--ref-000000B7-QINU`"'. (1) · '"`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-00000762-QINU`"' Largely renally cleared, hence the eGFR-tiered dosing. Rare but well-documented signals: acute pancreatitis (uncertain causal contribution), severe joint pain, and bullous pemphigoid (class effect, especially in older Asian patients)'"`UNIQ--ref-00000763-QINU`"'. (1)

'"`UNIQ--vote-000000B8-QINU`"', '"`UNIQ--vote-000000B9-QINU`"', '"`UNIQ--vote-000000BA-QINU`"', '"`UNIQ--vote-000000BB-QINU`"' (1) · '"`UNIQ--vote-000002C1-QINU`"' (1) · '"`UNIQ--vote-000005D2-QINU`"', '"`UNIQ--vote-000005D3-QINU`"', '"`UNIQ--vote-000005D4-QINU`"', '"`UNIQ--vote-000005D5-QINU`"' (1) · '"`UNIQ--vote-00000764-QINU`"' (1)

100 mg at bedtime daily (1) · 100 mg PO once daily (50 mg if CrCl 30-44; 25 mg if <30 or dialysis) (1) · 50 mg PO daily (25 mg in volume depletion or hepatic impairment) (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)

100 mg tabs (1) · 25 mg, 50 mg, 100 mg tablets (1) · 25, 50, 100 mg tablets; combination tablets with metformin (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 (4)

BP effect 1-2 weeks; antihypertensive peak 3-6 weeks (1) · Effects accumulate over weeks; assess at 8 weeks (1) · Postprandial glucose effect within days; HbA1c by 12 weeks (1) · Symptom relief within 24-48 hours (1)

24 hours (2) · 8 hours per dose (1) · Continuous daily dosing (1)

2 hours (parent); 6-9 hours for active carboxylic acid metabolite EXP3174'"`UNIQ--ref-000000BC-QINU`"' (1) · ~11 h (1) · ~12.4 hours'"`UNIQ--ref-00000765-QINU`"' (1) · ~3 hours (acyclovir, the active metabolite); longer in renal impairment'"`UNIQ--ref-000005D6-QINU`"' (1)

~33% (1) · ~33% (extensive first-pass via CYP2C9 and CYP3A4)'"`UNIQ--ref-000000BD-QINU`"' (1) · ~55% bioavailability of acyclovir after valacyclovir oral (vs ~20% from oral acyclovir directly)'"`UNIQ--ref-000005D7-QINU`"' (1) · ~87% (oral)'"`UNIQ--ref-00000766-QINU`"' (1)

'''Contraindicated in pregnancy''' (all trimesters); fetal renal injury, oligohydramnios, hypocalvaria, hypotension. Stop on detection'"`UNIQ--ref-000000BE-QINU`"' (1) · Limited data; switch to insulin where feasible.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Not indicated; pregnancy effects unknown (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-only in US (REMS program) (1) · [[USLegal:Prescription only|Rx-only]] in US (3)