Drilldown: Medicines

Acyclovir (1) · Ascorbic acid (vitamin C) (1)

Generic; huge OTC presence (1) · Zovirax (1)

[[:Category:Anti-herpesvirus_agents|Anti-herpesvirus agent]] (1) · [[:Category:Antioxidants|Antioxidant]] (1) · [[:Category:Antivirals|Antiviral]] (1) · [[:Category:Nucleoside_analogs|Nucleoside analog]] (1) · [[:Category:Vitamins|Vitamin]] (1) · [[:Category:Water-soluble_vitamins|Water-soluble vitamin]] (1)

None (2)

'"`UNIQ--vote-00000909-QINU`"', '"`UNIQ--vote-0000090A-QINU`"', '"`UNIQ--vote-0000090B-QINU`"', '"`UNIQ--vote-0000090C-QINU`"', '"`UNIQ--vote-0000090D-QINU`"', '"`UNIQ--vote-0000090E-QINU`"' (1) · '"`UNIQ--vote-000012E5-QINU`"', '"`UNIQ--vote-000012E6-QINU`"', '"`UNIQ--vote-000012E7-QINU`"', '"`UNIQ--vote-000012E8-QINU`"' (1)

General supplementation 75-90 mg/d (RDA); scurvy treatment 100-1000 mg/d for several weeks; megadose claims unsupported (1) · Initial genital herpes 400 mg PO TID × 7-10 days; episodic 800 mg TID × 2 days; suppression 400 mg BID; herpes zoster 800 mg 5×/day × 7 days; HSV encephalitis 10 mg/kg IV q8h × 14-21 days (1)

100, 250, 500, 1000 mg tablets, chewables, gummies, effervescent; IV (specialty) (1) · 200, 400, 800 mg tablets; 200 mg capsules; 200 mg/5 mL suspension; 500, 1000 mg IV vials; 5% cream and ointment (topical) (1)

Indication-specific; high-dose IV regimens for encephalitis or disseminated disease (1) · UL 2000 mg/d in adults (1)

None · Oral · IV · topical · IM · Intranasal · rectal · Subcutaneous · Topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · inhaled · SC · intra-articular

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Days for symptom improvement in scurvy (1) · Symptom relief within 24-48 hours of starting episodic treatment (1)

None · 24 hours · 4-6 hours · 12 hours · 6-8 hours · Daily dosing · 8-12 hours · 12-24 hours · Hours · Hours per application · 24 hours (HS dosing) · 24 hours (once-daily dosing) · 24 h · N/A · N/A (replacement) · Variable · ~7-8 hours · 3-5 hours · 4-6 hours (IR); 24 hours (ER) · 6-12 hours

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~10-20 days (steady-state body pool); single dose plasma ~2 hours (1) · ~3 hours; significantly prolonged in renal impairment'"`UNIQ--ref-0000090F-QINU`"' (1)

~20% (oral; valacyclovir prodrug raises this to ~55%)'"`UNIQ--ref-00000910-QINU`"' (1) · ~70-90% at typical doses; saturable at high doses (>500 mg) (1)

Safe at routine doses; routinely supplemented in pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Widely used in pregnancy for HSV/VZV indications; reassuring registry data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC in US (1) · [[USLegal:Prescription only|Rx-only]] in US (1)