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Medicines (732)

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Ascorbic acid (vitamin C) (1) · Bisacodyl (1) · Cyanocobalamin (vitamin B12) (1) · Docusate (sodium or calcium) (1) · Ferrous sulfate (1) · Fluorouracil (5-FU) (1) · Folic acid (folate, pteroylglutamic acid) (1) · Lactulose (1) · Polyethylene glycol 3350 (PEG 3350) (1) · Riboflavin (vitamin B2) (1) · Tretinoin (all-trans retinoic acid, ATRA) (1)

Colace (sodium), Surfak (calcium); many generics OTC (1) · Dulcolax, Correctol, Bisac-Evac (1) · Efudex (topical), Carac (topical), Fluoroplex (topical); generic IV (1) · Feosol, Fer-In-Sol, Slow Fe; mostly generic and OTC (1) · Folvite; mostly generic (1) · Generic; huge OTC presence (1) · Kristalose, Constulose, Generlac, Enulose (1) · Many generics/OTC (1) · Many OTC and Rx; Nascobal (intranasal); generic injection (1) · MiraLAX (OTC), GlycoLax, GoLYTELY (with electrolytes for bowel prep), CoLyte, MoviPrep, NuLYTELY (1) · Retin-A, Renova, Atralin, Avita, Tretin-X, Refissa, Altreno; Vesanoid (oral, APL) (1)

None (8) · '"`UNIQ--vote-00001067-QINU`"' Chronic use is associated with cathartic colon (colonic dilation, loss of haustration), hypokalemia, and laxative dependence; reserved for short-term use or bowel prep with breaks between courses'"`UNIQ--ref-00001068-QINU`"'. (1) · '"`UNIQ--vote-0000124C-QINU`"' The 400 mg/d dose for migraine prophylaxis is supported by randomized trials (Schoenen 1998) and remains a low-risk evidence-based supplement option. Characteristic bright-yellow urine fluorescence with high-dose oral supplementation. (1) · '"`UNIQ--vote-0000132D-QINU`"' Electrolyte-balanced bowel-prep formulations are designed to be iso-osmotic with plasma so the volume passes through without net fluid or electrolyte shifts, the basis of their safety for whole-bowel evacuation. (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) · 100-200 mg PO once or twice daily; pediatric weight-based (1) · 325 mg PO daily to TID (=65 mg elemental iron/tablet); alternate-day dosing is now favored by hepcidin physiology for better absorption with less GI burden (1) · 5-15 mg PO once at bedtime; 10 mg PR for faster effect; bowel prep regimens use higher single doses (1) · Constipation: 15-30 mL PO daily (titrate to 1-2 soft stools/day); hepatic encephalopathy: 20-30 g (30-45 mL) PO/PR every 1-2 hours acutely until soft stools, then BID-QID to target 2-3 soft stools/day (1) · Constipation: 17 g (one capful) PO daily dissolved in 4-8 oz fluid; bowel prep: 4 L of PEG-electrolyte solution split-dose evening before and morning of procedure (1) · General supplementation 75-90 mg/d (RDA); scurvy treatment 100-1000 mg/d for several weeks; megadose claims unsupported (1) · Migraine prophylaxis: 400 mg PO daily; deficiency replacement 5-30 mg/d (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) · Topical: 0.5-5% cream/solution to lesions BID × 2-4 weeks; systemic IV: regimen-specific in cancer chemotherapy (1) · Topical: pea-sized amount to dry face at bedtime, building from 2-3×/week to nightly as tolerated; oral APL: 45 mg/m²/d in divided doses (1)

0.4, 0.8, 1 mg OTC; 1 mg Rx; 5 mg/mL injection (1) · 0.5% (Carac), 1% (Fluoroplex), 5% (Efudex) topical creams/solutions; 50 mg/mL IV (1) · 10 g/15 mL solution (Constulose); 10 g, 20 g powder packets (Kristalose) (1) · 100, 250, 500, 1000 mg tablets, chewables, gummies, effervescent; IV (specialty) (1) · 100, 250, 500, 1000, 5000 mcg tablets (OTC and Rx); 1000 mcg/mL injection; intranasal spray; sublingual (1) · 17 g (OTC) and 14 g (Rx) powder packets; 238, 510, 527 g bottles; PEG-electrolyte preparations 4 L (GoLYTELY, NuLYTELY) (1) · 25, 50, 100, 250, 400 mg tablets; OTC (1) · 325 mg tablets (65 mg elemental Fe); 220 mg/5 mL liquid (44 mg elemental Fe/5 mL); 142 mg/mL drops; OTC and Rx (1) · 5 mg enteric-coated tablets; 10 mg rectal suppositories; OTC and Rx (1) · 50, 100, 250 mg capsules; 50 mg/5 mL syrup; OTC (1) · Topical 0.01-0.1% creams, gels, micropsheres, lotions; oral 10 mg capsules (Vesanoid) (1)

1 mg/d typical Rx; higher in specific indications (1) · 30 mg/d for short-term use (1) · Indication-specific; bowel prep regimens reach 4 L cumulative (1) · Indication-specific; HE may require high-volume dosing (1) · No strict ceiling for water-soluble vitamin; UL not set (1) · No strict ceiling; water-soluble vitamin, low toxicity (1) · Topical: nightly; oral APL: 45 mg/m²/d (1) · Topical: nightly; systemic: regimen-specific (1) · UL 2000 mg/d in adults (1) · ~200 mg elemental iron/d typical practical limit (1) · ~500 mg/d typical (1)

especially in acute HE) (1) · IM (2) · intranasal (1) · IV (4) · IV (rare) (1) · Oral (9) · oral (APL only) (1) · rectal (2) · rectal (enema (1) · SC (2) · sublingual (1) · Topical (2)

1-3 days (1) · Constipation: 1-3 days; bowel prep: 1-3 hours after starting (1) · Constipation: 24-48 hours; HE: ammonia reduction within hours of stool production (1) · Days for symptom improvement in scurvy (1) · Hematologic response within days (1) · Migraine effect after 1-3 months of daily use (1) · PO 6-12 hours; PR 15-60 minutes (1) · Reticulocyte response at 3-5 days; neurologic recovery weeks to months (and may be incomplete if longstanding) (1) · Reticulocyte response at 7-10 days; hemoglobin rise of ~1 g/dL per 3 weeks (1) · Topical: inflammation, erythema, crusting at 2 weeks; complete response weeks to months after course (1) · Topical: irritation within days; acne improvement 6-12 weeks; oral APL response within days (1)

N/A (incorporated into hemoglobin and tissue stores) (1) · Not meaningfully described (1) · Not meaningfully described (negligible systemic absorption) (1) · Not meaningfully described — lactulose is not significantly absorbed (1) · Variable; effect dependent on local intestinal action rather than systemic kinetics'"`UNIQ--ref-0000106B-QINU`"' (1) · ~0.5 hours plasma; tissue retention longer (1) · ~0.5-2 hours (oral)'"`UNIQ--ref-00000BA3-QINU`"' (1) · ~1-2 hours plasma (riboflavin itself); FAD/FMN tissue cofactors are continuous (1) · ~10-20 days (steady-state body pool); single dose plasma ~2 hours (1) · ~10-20 minutes systemically (rapid hepatic and erythrocyte dihydropyrimidine dehydrogenase clearance)'"`UNIQ--ref-000011BE-QINU`"' (1) · ~6 days (plasma); hepatic stores last 3-5 years (1)

10-20% (oral; reduced by food, calcium, antacids, PPIs, tea/coffee; enhanced by ascorbate) (1) · <0.1% systemic absorption (PEG 3350 is too large to absorb intact) (1) · <3% systemic absorption (the basis of the safety and mechanism)'"`UNIQ--ref-00000F5E-QINU`"' (1) · High (oral) (1) · Local action; minimal systemic effect (1) · Low systemic absorption (enteric coating delivers drug to colon)'"`UNIQ--ref-0000106C-QINU`"' (1) · Oral ~1-3% via passive diffusion at high doses (independent of intrinsic factor); IM/SC ~100% (1) · Topical: minimal systemic absorption (oral systemic 5-FU not used due to poor and variable absorption)'"`UNIQ--ref-000011BF-QINU`"' (1) · Topical: minimal systemic absorption with normal skin; oral: variable, induced metabolism with repeated dosing'"`UNIQ--ref-00000BA4-QINU`"' (1) · ~50-60% (oral; food enhances) (1) · ~70-90% at typical doses; saturable at high doses (>500 mg) (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) · OTC (MiraLAX) and [[USLegal:Prescription only|Rx-only]] (electrolyte solutions for bowel prep) in US (1) · OTC in US (5) · [[USLegal:Prescription only|Rx-only]] in US (3)

Showing below up to 11 results in range #1 to #11.

F

L

Lactulose

P

Polyethylene Glycol 3350

R

Riboflavin

T

Tretinoin