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Medicines (732)

Medicines > fda max

: 10 mg/d (adults)

or Indication-specific

or No fixed maximum; titrated to TSH target

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Betamethasone (valerate, dipropionate, sodium phosphate, acetate) (1) · Cetirizine (1) · Dexamethasone (1) · Hydrocortisone (cortisol) (1) · Levothyroxine (1) · Loratadine (1) · Medroxyprogesterone acetate (MPA) (1) · Methylprednisolone (1) · Montelukast (1) · Norethindrone (norethisterone outside US) (1) · Nystatin (1) · Penicillin G (benzylpenicillin; potassium, sodium, benzathine, procaine salts) (1) · Prednisolone (and prednisolone sodium phosphate, acetate, etc.) (1) · Thyroid (desiccated) (1) · Triamcinolone (acetonide and other esters) (1)

Armour Thyroid, NP Thyroid, Nature-Throid, WP Thyroid (1) · Aygestin (5 mg, Rx); Camila, Errin, Heather, Jolivette, Nor-QD, Ortho Micronor, Sharobel (0.35 mg POPs); component of many COCs (1) · Bicillin L-A (benzathine), Bicillin C-R (combination procaine + benzathine), Pfizerpen (potassium IV) (1) · Celestone (oral/injectable), Diprolene/Diprosone (topical), Luxiq (foam), Celestone Soluspan (depot IM) (1) · Claritin, Alavert, Tavist ND (1) · Cortef (oral), Solu-Cortef (IV), many topical brands (Cortizone, OTC); Plenadren, Alkindi (modified-release for adrenal insufficiency) (1) · Decadron (historical), Dexpak (taper pack), Hemady, Ozurdex (intravitreal) (1) · Kenalog (injectable), Nasacort (intranasal), Aristocort (topical), Trianex (1) · Medrol (oral), Solu-Medrol (IV/IM), Depo-Medrol (depot injection) (1) · Mycostatin, Nystop, Nyamyc, Bio-Statin (1) · Prelone, Pediapred, Orapred ODT, Millipred, Veripred (1) · Provera (oral), Depo-Provera (IM contraceptive), Depo-SubQ Provera 104 (SC) (1) · Singulair (1) · Synthroid, Levoxyl, Tirosint, Unithroid, Euthyrox (1) · Zyrtec, Zyrtec-D (1)

None (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) · 10 mg PO once daily (1) · 10 mg PO once daily (5 mg in older adults or if sedation occurs) (1) · 10 mg PO once daily in the evening (adults); 4-5 mg in children (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) · Antenatal: Celestone Soluspan 12 mg IM q24h × 2 doses; topical: pea-sized amount BID; intra-articular varies by joint (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) · Indication-specific: 0.5-9 mg PO/IV daily for inflammation; 4 mg IV q6h for cerebral edema; 40 mg PO once weekly in MM; 6 mg PO/IV daily ×10 days for severe COVID-19; 0.6 mg/kg PO single dose for croup (max 16 mg) (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) · Pediatric 1-2 mg/kg/d (max 60 mg) PO for asthma exacerbation; adult dosing similar to prednisone milligram-for-milligram (~1:1 potency) (1) · Physiologic replacement 15-25 mg/d divided (e.g., 10 mg AM, 5 mg noon, 5 mg afternoon); stress dose 50-100 mg IV q6-8h; adrenal crisis 100 mg IV then 50-100 mg q6h; topical 0.5-2.5% applied 2-4×/d (1) · PO Medrol Dosepak (5-day taper from 24 mg to 4 mg) is the prototypic short-course outpatient regimen; IV pulse 1 g daily for 3-5 days for MS relapse; intra-articular 4-80 mg per joint q1-5 weeks (1) · POP: 0.35 mg PO daily continuously (no placebo week); high-dose 5 mg Aygestin for amenorrhea/endometriosis 5-10 mg/d (1) · Topical 0.025-0.5% cream/ointment BID; intra-articular 5-40 mg per joint q3-6 months; intranasal Nasacort 110 mcg/spray, 2 sprays/nostril daily; oral paste 0.1% to lesion 2-3×/d (1)

0.35 mg POP tablets; 5 mg tablets (Aygestin); component of COCs and combination HRT (1) · 0.5, 0.75, 1, 1.5, 2, 4, 6 mg tablets; oral solution; 4, 10, 20, 100 mg/mL IV; intravitreal implant (Ozurdex) (1) · 0.6 mg/5 mL oral solution; Celestone Soluspan 6 mg/mL IM/IA (mix of sodium phosphate + acetate); 0.05% and 0.1% topical cream/ointment/lotion/foam (various salts); augmented betamethasone 0.05% (super-high potency) (1) · 10 mg tablets; 4 mg, 5 mg chewables; 4 mg granules (1) · 10 mg tablets; 5 mg ODT and chewables; 1 mg/mL oral syrup; combo Claritin-D (with pseudoephedrine, behind-counter) (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, 4, 8, 16, 32 mg oral tablets; 40, 125, 500, 1000 mg IV vials; Depo-Medrol 20, 40, 80 mg/mL IM depot (1) · 2.5, 5, 10 mg oral tablets; Depo-Provera 150 mg/mL IM; Depo-SubQ Provera 104 mg/0.65 mL (1) · 25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200, 300 mcg tablets; oral capsule and IV/IM also available (1) · 5 mg tablets; 5 mg/5 mL, 10 mg/5 mL, 15 mg/5 mL oral solutions (sweetened pediatric); 5 mg/5 mL syrup; ophthalmic 0.12%, 1% suspensions and 1% solution (1) · 5 mg, 10 mg tablets; 5 mg, 10 mg chewables; 1 mg/mL oral syrup; OTC (1) · 5, 10, 20 mg oral tablets; 100, 250, 500, 1000 mg IV (Solu-Cortef); 0.5%, 1%, 2.5% topical creams/ointments; rectal foam and enemas (1) · Bicillin L-A 600,000; 1.2M; 2.4M U IM; aqueous crystalline (Pfizerpen) 5M, 20M U IV; procaine 600,000 U/mL IM (1) · Topical creams, ointments, lotions, dental paste (0.025-0.5%); Kenalog 10 mg/mL, 40 mg/mL injection; Nasacort 55 mcg/spray intranasal; oral inhaler discontinued in US (1)

1-3 hours (slower onset than cetirizine; symptom relief somewhat less) (1) · 30-60 minutes (1) · Bronchodilation within 1-2 hours; full controller effect 1-2 weeks (1) · Contraception within 48 hours of starting (POP); endometrial effects days (1) · Contraceptive within 24 hours if given in first 5 days of cycle; otherwise backup for 7 days (1) · Hours (4) · IV pulse: hours; PO: hours; intra-articular: days (1) · IV: minutes; IM benzathine: depot levels last weeks (1) · Symptom relief within days (1) · Topical hours; intra-articular days to weeks (1) · TSH normalization 4-8 weeks (1) · TSH normalization 4-8 weeks; symptomatic improvement weeks to months (1)

24 hours (3) · Biologic 12-36 hours (intermediate-acting) (1) · Biologic 12-36 hours (intermediate-acting); Depo-Medrol depot weeks (1) · Biologic 36-54 hours (long-acting) (1) · Biologic 36-72 hours (long-acting) (1) · Biologic ~8-12 hours (short-acting) (1) · Depot IM 13 weeks (designed); often persists longer (1) · Hours per application (1) · IM benzathine: 3-4 weeks of detectable levels (1) · Intra-articular 3-6 months (depot effect of acetonide microcrystals) (1) · Steady-state at 4-6 weeks (2) · ~24 hours per dose (strict timing required for POP — within 3-hour window each day) (1)

2.7-5.5 hours'"`UNIQ--ref-0000015E-QINU`"' (1) · 8-10 hours (longer in elderly and renal impairment)'"`UNIQ--ref-00000396-QINU`"' (1) · Aqueous crystalline ~30 minutes; benzathine effective ~3 weeks via depot release'"`UNIQ--ref-00001419-QINU`"' (1) · Not meaningfully described (not systemically absorbed)'"`UNIQ--ref-00000D17-QINU`"' (1) · Plasma 2-3 hours; biologic ~18-36 hours'"`UNIQ--ref-00000867-QINU`"' (1) · Plasma 2-3 hours; biologic ~18-36 hours'"`UNIQ--ref-000008C4-QINU`"' (1) · Plasma ~1-2 hours; biologic ~8-12 hours'"`UNIQ--ref-00000AD1-QINU`"' (1) · Plasma ~3-4.5 hours; biologic ~36-72 hours'"`UNIQ--ref-00000E2B-QINU`"' (1) · Plasma ~3-5 hours; biologic effect substantially longer (~12-36 hours for intermediate-acting glucocorticoids)'"`UNIQ--ref-00000666-QINU`"' (1) · Plasma ~5 hours; biologic ~36-54 hours'"`UNIQ--ref-0000101A-QINU`"' (1) · T4 ~7 days; T3 ~1 day'"`UNIQ--ref-00000036-QINU`"' (1) · ~50 days (Depo-Provera; long depot release)'"`UNIQ--ref-00000F20-QINU`"' (1) · ~7 days (euthyroid); longer in hypothyroidism (~9-10 days), shorter in hyperthyroidism'"`UNIQ--ref-00000036-QINU`"' (1) · ~8 hours (parent); ~28 hours (desloratadine, the active metabolite, marketed separately as Clarinex)'"`UNIQ--ref-00000621-QINU`"' (1) · ~8 hours'"`UNIQ--ref-000013F5-QINU`"' (1)

40-80% (oral); reduced by food, calcium, iron, PPIs, fiber; take fasting with water'"`UNIQ--ref-00000037-QINU`"' (1) · Acid-labile; not effective orally (oral form available outside US as penicillin G salts but penicillin V is preferred for oral use)'"`UNIQ--ref-0000141A-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) · High (oral); not significantly affected by food'"`UNIQ--ref-00000397-QINU`"' (1) · High (oral; food prolongs absorption modestly)'"`UNIQ--ref-00000622-QINU`"' (1) · Oral ~70%; depot IM provides sustained release over weeks'"`UNIQ--ref-0000101B-QINU`"' (1) · Oral ~90%; depot IM essentially 100% over the dosing interval'"`UNIQ--ref-00000F21-QINU`"' (1) · Topical/intranasal: high local, low systemic; intra-articular: local depot then systemic absorption'"`UNIQ--ref-00000667-QINU`"' (1) · Variable; reduced by food, calcium, iron, PPIs'"`UNIQ--ref-00000037-QINU`"' (1) · ~64% (oral; not significantly affected by food)'"`UNIQ--ref-0000015F-QINU`"' (1) · ~65% (oral)'"`UNIQ--ref-000013F6-QINU`"' (1) · ~70% (oral)'"`UNIQ--ref-000008C5-QINU`"' (1) · ~80% (oral)'"`UNIQ--ref-00000E2C-QINU`"' (1) · ~80-99% (oral)'"`UNIQ--ref-00000868-QINU`"' (1) · ~96% (oral)'"`UNIQ--ref-00000AD2-QINU`"' (1)

OTC (low-dose topicals) and [[USLegal:Prescription only|Rx-only]] (other forms) in US (1) · OTC (lowest-strength topicals) and [[USLegal:Prescription only|Rx-only]] (higher strengths, injectable) in US (1) · OTC in US (2) · [[USLegal:Prescription only|Rx-only]] in US (8) · [[USLegal:Prescription only|Rx-only]] in US (note: norgestrel 0.075 mg POP is now OTC as Opill since 2023, but norethindrone POP remains Rx) (1) · [[USLegal:Prescription only|Rx-only]] in US. '''FDA Boxed Warning (2020):''' neuropsychiatric events including agitation, depression, sleep disturbance, and suicidal thoughts; benefit-risk should be reassessed regularly'"`UNIQ--ref-00000160-QINU`"'. (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)