Drilldown: Medicines
Use the filters below to narrow your results.
generic:
brand:
classes:
[[:Category:Antianginals|Antianginal]] (1) ·
[[:Category:Antihypertensives|Antihypertensive]] (1) ·
[[:Category:B-vitamins|B-vitamin]] (2) ·
[[:Category:Calcium_channel_blockers|Calcium channel blocker (dihydropyridine)]] (1) ·
[[:Category:Hematinics|Hematinic]] (2) ·
[[:Category:Hormonal_contraceptives|Hormonal contraceptive (Depo)]] (1) ·
[[:Category:NMDA antagonists|NMDA receptor antagonist]] (1) ·
[[:Category:Opioid analgesics|Opioid analgesic (full mu-agonist)]] (1) ·
[[:Category:Progestogens|Progestin (synthetic progestogen)]] (1) ·
[[:Category:Schedule II controlled substances|Schedule II controlled substance]] (1) ·
[[:Category:Sex_hormones|Sex hormone]] (1) ·
[[:Category:Tocolytics|Tocolytic (off-label)]] (1) ·
[[:Category:Vitamins|Vitamin]] (2)
mechanism:
uses:
'"`UNIQ--vote-0000004C-QINU`"', '"`UNIQ--vote-0000004D-QINU`"', '"`UNIQ--vote-0000004E-QINU`"' (1) ·
'"`UNIQ--vote-000005B3-QINU`"', '"`UNIQ--vote-000005B4-QINU`"', '"`UNIQ--vote-000005B5-QINU`"', '"`UNIQ--vote-000005B6-QINU`"' (1) ·
'"`UNIQ--vote-00000607-QINU`"', '"`UNIQ--vote-00000608-QINU`"', '"`UNIQ--vote-00000609-QINU`"', '"`UNIQ--vote-0000060A-QINU`"' (1) ·
'"`UNIQ--vote-00000747-QINU`"', '"`UNIQ--vote-00000748-QINU`"', '"`UNIQ--vote-00000749-QINU`"', '"`UNIQ--vote-0000074A-QINU`"', '"`UNIQ--vote-0000074B-QINU`"', '"`UNIQ--vote-0000074C-QINU`"' (1) ·
'"`UNIQ--vote-00000F1B-QINU`"', '"`UNIQ--vote-00000F1C-QINU`"', '"`UNIQ--vote-00000F1D-QINU`"', '"`UNIQ--vote-00000F1E-QINU`"', '"`UNIQ--vote-00000F1F-QINU`"' (1)
starting dose:
None (1) ·
0.4 mg PO daily (general prevention); 0.8-1 mg/d in pregnancy; 4 mg/d for women with prior NTD-affected pregnancy; 1 mg/d during methotrexate therapy (1) ·
Contraception: Depo-Provera 150 mg IM every 13 weeks; Depo-SubQ 104 mg SC every 12-13 weeks; oral cycling: 5-10 mg PO daily ×5-10 days for amenorrhea (1) ·
ER 30-60 mg PO once daily; immediate-release 10 mg PO TID (now rarely used for hypertension due to reflex tachycardia) (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)
preparations:
0.4, 0.8, 1 mg OTC; 1 mg Rx; 5 mg/mL injection (1) ·
10, 20 mg IR capsules; 30, 60, 90 mg ER tablets (1) ·
100, 250, 500, 1000, 5000 mcg tablets (OTC and Rx); 1000 mcg/mL injection; intranasal spray; sublingual (1) ·
2.5, 5, 10 mg oral tablets; Depo-Provera 150 mg/mL IM; Depo-SubQ Provera 104 mg/0.65 mL (1) ·
Tablets 5, 10, 40 mg (40 mg dispersible restricted to OTPs); oral concentrate 10 mg/mL; oral solution 1, 2, 10 mg/mL; injection 10 mg/mL (1)
fda max:
1 mg/d typical Rx; higher in specific indications (1) ·
120 mg/d (ER); IR not for chronic hypertension (1) ·
Indication-specific (1) ·
No formal hard ceiling; in MOUD maintenance, doses typically remain at or below 120 mg/day with higher doses reserved for documented under-treatment after careful clinical assessment (1) ·
No strict ceiling; water-soluble vitamin, low toxicity (1)
routes: (Click arrow to add another value)
onset:
Contraceptive within 24 hours if given in first 5 days of cycle; otherwise backup for 7 days (1) ·
Hematologic response within days (1) ·
IR 20 minutes; ER ~6 hours (1) ·
Oral analgesic effect 30-60 minutes; opioid-withdrawal suppression 30 minutes (oral); IV ~10 minutes (1) ·
Reticulocyte response at 3-5 days; neurologic recovery weeks to months (and may be incomplete if longstanding) (1)
duration:
halflife:
None (1) ·
2-5 hours (IR); ER formulations extend functional duration via osmotic/matrix release'"`UNIQ--ref-0000074D-QINU`"' (1) ·
~0.5 hours plasma; tissue retention longer (1) ·
~50 days (Depo-Provera; long depot release)'"`UNIQ--ref-00000F20-QINU`"' (1) ·
~6 days (plasma); hepatic stores last 3-5 years (1)
bioavailability:
High (oral) (1) ·
Oral ~1-3% via passive diffusion at high doses (independent of intrinsic factor); IM/SC ~100% (1) ·
Oral ~90%; depot IM essentially 100% over the dosing interval'"`UNIQ--ref-00000F21-QINU`"' (1) ·
~50% IR (extensive first-pass via CYP3A4); ER products release-rate-limited'"`UNIQ--ref-0000074E-QINU`"' (1) ·
~70-85% (oral, high relative to other opioids) (1)
pregnancy:
None (1) ·
Contraindicated in known pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Oral nifedipine is one of the preferred agents for severe hypertension in pregnancy and for tocolysis in preterm labor.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Routinely supplemented in pregnancy and preconception to prevent neural tube defects.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Routinely supplemented in vegan pregnancies and pernicious anemia.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1)
legal:
None (1) ·
OTC (low-dose) and [[USLegal:Prescription only|Rx-only]] (1 mg, injectable) in US (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) ·
[[USLegal:Prescription only|Rx-only]] in US. Carries a '''Boxed Warning''' for bone mineral density loss with prolonged use (≥2 years; partially reversible after discontinuation)'"`UNIQ--ref-00000F22-QINU`"' (1)
Showing below up to 5 results in range #1 to #5.