Drilldown: Medicines

Ciclopirox (1) · Clotrimazole (1) · Hydroquinone (1) · Levothyroxine (1) · Mupirocin (1) · Nystatin (1) · Thyroid (desiccated) (1)

Armour Thyroid, NP Thyroid, Nature-Throid, WP Thyroid (1) · Bactroban, Centany (1) · Lotrimin, Mycelex, Gyne-Lotrimin; OTC widely (1) · Lustra, EpiQuin Micro, Melquin, Tri-Luma (with tretinoin and fluocinolone) (1) · Mycostatin, Nystop, Nyamyc, Bio-Statin (1) · Penlac (nail lacquer), Loprox (cream/lotion/shampoo) (1) · Synthroid, Levoxyl, Tirosint, Unithroid, Euthyrox (1)

[[:Category:Antibacterials|Antibacterial]] (1) · [[:Category:Antifungals|Antifungal (imidazole)]] (1) · [[:Category:Antifungals|Antifungal]] (2) · [[:Category:Depigmenting_agents|Depigmenting agent]] (1) · [[:Category:Hormone_replacement|Hormone replacement]] (2) · [[:Category:Hydroxypyridones|Hydroxypyridone]] (1) · [[:Category:Polyene_antifungals|Polyene antifungal]] (1) · [[:Category:Skin_lightening_agents|Skin-lightening agent]] (1) · [[:Category:Thyroid_hormones|Thyroid hormone]] (2) · [[:Category:Topical_antibiotics|Topical antibiotic]] (1) · [[:Category:Topical_antifungals|Topical antifungal]] (2)

None (2) · Synthetic T4 (thyroxine); peripherally deiodinated to T3 (triiodothyronine), the active hormone. '"`UNIQ--vote-00000031-QINU`"' Narrow therapeutic index; brand-to-generic switches can shift TSH and require re-titration'"`UNIQ--ref-00000032-QINU`"'. (1) · '"`UNIQ--vote-00000032-QINU`"' Brand-to-brand and lot-to-lot variability in T3:T4 ratio is greater than with synthetic levothyroxine, which is why endocrine guidelines prefer the synthetic'"`UNIQ--ref-00000033-QINU`"'. (1) · '"`UNIQ--vote-000009FD-QINU`"' Active against gram-positive cocci including MRSA; the unique target underlies the absence of cross-resistance with other antibiotic classes. High-level resistance (plasmid-mediated mupA) is rising and limits prolonged or repeated use'"`UNIQ--ref-000009FE-QINU`"'. (1) · '"`UNIQ--vote-00000D11-QINU`"' Same mechanistic family as amphotericin B but with prohibitive systemic toxicity at therapeutic doses, hence restriction to topical and luminal-gut indications. No clinically meaningful resistance after decades of use'"`UNIQ--ref-00000D12-QINU`"'. (1) · '"`UNIQ--vote-00001233-QINU`"' Onychomycosis cure rates with nail lacquer are modest (mycologic cure ~30-50%, complete cure ~5-12% at 48 weeks); oral terbinafine remains substantially more effective when systemic therapy is acceptable'"`UNIQ--ref-00001234-QINU`"'. (1)

'"`UNIQ--vote-00000033-QINU`"', '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) · '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) · '"`UNIQ--vote-000009FF-QINU`"', '"`UNIQ--vote-00000A00-QINU`"', '"`UNIQ--vote-00000A01-QINU`"' (1) · '"`UNIQ--vote-00000D13-QINU`"', '"`UNIQ--vote-00000D14-QINU`"', '"`UNIQ--vote-00000D15-QINU`"', '"`UNIQ--vote-00000D16-QINU`"' (1) · '"`UNIQ--vote-00000F40-QINU`"', '"`UNIQ--vote-00000F41-QINU`"', '"`UNIQ--vote-00000F42-QINU`"', '"`UNIQ--vote-00000F43-QINU`"', '"`UNIQ--vote-00000F44-QINU`"' (1) · '"`UNIQ--vote-00001215-QINU`"', '"`UNIQ--vote-00001216-QINU`"', '"`UNIQ--vote-00001217-QINU`"' (1) · '"`UNIQ--vote-00001235-QINU`"', '"`UNIQ--vote-00001236-QINU`"', '"`UNIQ--vote-00001237-QINU`"', '"`UNIQ--vote-00001238-QINU`"' (1)

1.6 mcg/kg/d in young healthy adults; 25-50 mcg/d in elderly or cardiac disease, titrated by TSH at 6-8 weeks (1) · 30 mg PO daily (1/2 grain); titrate by TSH at 6-8 weeks; 60 mg desiccated thyroid is approximately equivalent to 88-100 mcg levothyroxine (1) · Apply thin layer to hyperpigmented areas BID; limit to 4-6 month courses to avoid ochronosis (1) · Oral: 4-6 mL (400,000-600,000 units) suspension QID swish-and-swallow; topical: BID-QID; vaginal tablet 1 daily for 2 weeks (1) · Topical cream/lotion BID; shampoo twice weekly; nail lacquer (Penlac) once daily for up to 48 weeks (1) · Topical: 1% cream BID × 2-4 weeks; vaginal: 1% or 2% cream nightly × 7 days, or 100/200/500 mg vaginal tablet single or 3-day regimens; troche: 10 mg PO five times daily × 2 weeks for thrush (1) · Topical: apply small amount to affected area TID × 5-10 days; nasal: apply half the contents of a single-use tube into each nostril BID × 5 days (1)

0.77% topical cream, lotion, suspension; 1% shampoo; 8% nail lacquer (Penlac) (1) · 1% topical cream, lotion, solution; 1%, 2% vaginal cream; 100, 200, 500 mg vaginal tablets; 10 mg oral troches; combination with betamethasone (Lotrisone, Rx) (1) · 100,000 units/mL oral suspension; 500,000 unit tablets; 100,000 units/g cream, ointment, powder; vaginal tablets (1) · 15, 30, 60, 90, 120, 180, 240, 300 mg tablets (1/4 to 5 grains; 1 grain = 60 mg) (1) · 2% ointment; 2% cream; 2% nasal ointment (Bactroban Nasal) (1) · 25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200, 300 mcg tablets; oral capsule and IV/IM also available (1) · 4% prescription cream/lotion; OTC 2% withdrawn in US (2020 CARES Act); compounded higher strengths available (1)

4% topical; limit duration of use (1) · BID topical; once daily nail lacquer (1) · Indication-specific (1) · Limit topical to 10-day courses to reduce resistance pressure (1) · No fixed maximum; titrated to TSH target (2) · Topical: BID; troche: 5×/day (1)

intranasal (1) · IV (1) · Oral (2) · Oral (topical action; minimal systemic absorption) (1) · oral troche (1) · Topical (5) · vaginal (2)

Days (2) · Days for dermatophyte clearance; nail clearance over months (1) · Symptom relief within days (1) · TSH normalization 4-8 weeks (1) · TSH normalization 4-8 weeks; symptomatic improvement weeks to months (1) · Visible lightening at 4-12 weeks (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:

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Not meaningfully described (minimal systemic absorption from topical use)'"`UNIQ--ref-00000F45-QINU`"' (1) · Not meaningfully described (not systemically absorbed)'"`UNIQ--ref-00000D17-QINU`"' (1) · Not meaningfully described (topical local action)'"`UNIQ--ref-00001239-QINU`"' (1) · Not meaningfully described for topical use'"`UNIQ--ref-00000A02-QINU`"' (1) · Not meaningfully described — topical local action with minimal systemic absorption'"`UNIQ--ref-00001218-QINU`"' (1) · T4 ~7 days; T3 ~1 day'"`UNIQ--ref-00000036-QINU`"' (1) · ~7 days (euthyroid); longer in hypothyroidism (~9-10 days), shorter in hyperthyroidism'"`UNIQ--ref-00000036-QINU`"' (1)

40-80% (oral); reduced by food, calcium, iron, PPIs, fiber; take fasting with water'"`UNIQ--ref-00000037-QINU`"' (1) · Essentially zero systemic absorption from oral or topical routes — the topical-action-only profile is the basis of its safety'"`UNIQ--ref-00000D18-QINU`"' (1) · Topical with limited but measurable systemic absorption'"`UNIQ--ref-00001219-QINU`"' (1) · Topical with minimal systemic absorption'"`UNIQ--ref-0000123A-QINU`"' (1) · Topical: minimal systemic; troche: ~3% systemic'"`UNIQ--ref-00000F46-QINU`"' (1) · Topical; minimal systemic absorption'"`UNIQ--ref-00000A03-QINU`"' (1) · Variable; reduced by food, calcium, iron, PPIs'"`UNIQ--ref-00000037-QINU`"' (1)

First-line in pregnancy; dose typically increased 25-30% due to estrogen-driven rise in TBG and fetal demand. Lactation safe at physiologic doses.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Generally avoided in pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Generally considered safe (minimal systemic absorption).<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Generally considered safe in pregnancy (no systemic absorption).<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Generally considered safe; minimal systemic exposure.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Synthetic levothyroxine is the standard-of-care in pregnancy; desiccated thyroid use in pregnancy is not well studied<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Topical and vaginal generally considered safe; widely used.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (lower strengths) and [[USLegal:Prescription only|Rx-only]] (combination with betamethasone) in US (1) · [[USLegal:Prescription only|Rx-only]] in US (5) · [[USLegal:Prescription only|Rx-only]] in US since 2020 (OTC 2% formulations withdrawn under CARES Act due to safety concerns) (1)