Drilldown: Medicines

None · Codeine · 1,4-Butanediol · 1B-LSD · 1cP-LSD · 1P-LSD · 1V-LSD · 2-AI · 2-FA · 2-FDCK · 2-FMA · 25B-NBOH · 25B-NBOMe · 25C-NBOH · 25C-NBOMe · 25I-NBOH · 25I-NBOMe · 25N-NBOMe · 2C-B · 2C-B-FLY

Other values:

Search

Many OTC and Rx; Nascobal (intranasal); generic injection (1)

[[:Category:B-vitamins|B-vitamin]] (1) · [[:Category:Hematinics|Hematinic]] (1) · [[:Category:Vitamins|Vitamin]] (1)

None (1)

'"`UNIQ--vote-00000607-QINU`"', '"`UNIQ--vote-00000608-QINU`"', '"`UNIQ--vote-00000609-QINU`"', '"`UNIQ--vote-0000060A-QINU`"' (1)

Replacement: 1000 mcg IM daily for 1 week, then weekly for 4 weeks, then monthly; or 1000-2000 mcg PO daily (effective even in pernicious anemia via passive diffusion); intranasal 500 mcg weekly (1)

100, 250, 500, 1000, 5000 mcg tablets (OTC and Rx); 1000 mcg/mL injection; intranasal spray; sublingual (1)

No strict ceiling; water-soluble vitamin, low toxicity (1)

IM (1) · intranasal (1) · IV (1) · Oral (1) · SC (1) · sublingual (1)

Reticulocyte response at 3-5 days; neurologic recovery weeks to months (and may be incomplete if longstanding) (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

Other values:

Search

~6 days (plasma); hepatic stores last 3-5 years (1)

Oral ~1-3% via passive diffusion at high doses (independent of intrinsic factor); IM/SC ~100% (1)

Routinely supplemented in vegan pregnancies and pernicious anemia.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (low/mid-dose oral) and [[USLegal:Prescription only|Rx-only]] (injection, intranasal) in US (1)