Drilldown: Medicines

Cyanocobalamin (vitamin B12) (1) · Nitroglycerin (glyceryl trinitrate, GTN) (1)

Many OTC and Rx; Nascobal (intranasal); generic injection (1) · Nitrostat, Nitrolingual, NitroMist, Nitro-Bid, Nitro-Dur, Minitran, Rectiv (1)

[[:Category:Antianginals|Antianginal]] (1) · [[:Category:B-vitamins|B-vitamin]] (1) · [[:Category:Hematinics|Hematinic]] (1) · [[:Category:Nitrates|Organic nitrate]] (1) · [[:Category:Vasodilators|Vasodilator]] (1) · [[:Category:Vitamins|Vitamin]] (1)

None (2)

'"`UNIQ--vote-00000607-QINU`"', '"`UNIQ--vote-00000608-QINU`"', '"`UNIQ--vote-00000609-QINU`"', '"`UNIQ--vote-0000060A-QINU`"' (1) · '"`UNIQ--vote-00000C0A-QINU`"', '"`UNIQ--vote-00000C0B-QINU`"', '"`UNIQ--vote-00000C0C-QINU`"', '"`UNIQ--vote-00000C0D-QINU`"', '"`UNIQ--vote-00000C0E-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) · SL 0.3-0.6 mg every 5 minutes up to 3 doses for acute angina (call EMS if not resolved after the third); IV infusion 5-10 mcg/min titrated; transdermal patch 0.2-0.4 mg/hr for 12-14 hours daily (nitrate-free interval prevents tolerance) (1)

100, 250, 500, 1000, 5000 mcg tablets (OTC and Rx); 1000 mcg/mL injection; intranasal spray; sublingual (1) · SL 0.3, 0.4, 0.6 mg tablets; lingual spray 0.4 mg/spray; ER 2.5-9 mg capsules; transdermal patch 0.1-0.8 mg/hr; 2% ointment; 0.4% rectal ointment; 5 mg/mL IV (1)

Indication-specific; titrated to effect (1) · No strict ceiling; water-soluble vitamin, low toxicity (1)

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

Other values:

Search

Reticulocyte response at 3-5 days; neurologic recovery weeks to months (and may be incomplete if longstanding) (1) · SL/spray: 1-3 minutes; IV: minutes; patch: 30-60 minutes (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

1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' (1) · ~6 days (plasma); hepatic stores last 3-5 years (1)

Highly route-dependent: SL bypasses first-pass; oral has extensive first-pass (used only for chronic ER preparations); transdermal predictable'"`UNIQ--ref-00000C10-QINU`"' (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) · Used in obstetric emergencies (uterine relaxation, severe hypertension) when needed; otherwise limited routine use.<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) · [[USLegal:Prescription only|Rx-only]] in US (1)