Drilldown: Medicines
Medicines > fda max 
:
450 mg/day; doses above this raise seizure risk steeply or
No fixed maximum; titrated to TSH target or
Titrated to glucose; no fixed maximum
:
450 mg/day; doses above this raise seizure risk steeply or
No fixed maximum; titrated to TSH target or
Titrated to glucose; no fixed maximum Use the filters below to narrow your results.
generic:
brand:
classes:
[[:Category:Antidepressants|Antidepressant]] (1) ·
[[:Category:Hormone_replacement|Hormone replacement]] (2) ·
[[:Category:Insulins|Insulin]] (2) ·
[[:Category:Mealtime_insulins|Mealtime (bolus) insulin]] (2) ·
[[:Category:NDRIs|Norepinephrine-dopamine reuptake inhibitor (NDRI)]] (1) ·
[[:Category:Rapid-acting_insulins|Rapid-acting insulin analog]] (2) ·
[[:Category:Smoking cessation medicines|Smoking cessation medicine]] (1) ·
[[:Category:Thyroid_hormones|Thyroid hormone]] (2)
mechanism:
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-00000016-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-00000017-QINU`"'. (1) ·
'"`UNIQ--vote-00000584-QINU`"' Binds the same insulin receptor as endogenous insulin with comparable mitogenic-to-metabolic ratio. Ultra-rapid formulations (Lyumjev) add treprostinil and citrate to accelerate absorption further'"`UNIQ--ref-00000585-QINU`"'. (1)
uses:
'"`UNIQ--vote-00000018-QINU`"', '"`UNIQ--vote-00000019-QINU`"' (1) ·
'"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"', '"`UNIQ--vote-00000020-QINU`"', '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"' (1) ·
'"`UNIQ--vote-00000033-QINU`"', '"`UNIQ--vote-00000034-QINU`"', '"`UNIQ--vote-00000035-QINU`"' (1) ·
'"`UNIQ--vote-00000586-QINU`"', '"`UNIQ--vote-00000587-QINU`"', '"`UNIQ--vote-00000588-QINU`"' (1) ·
'"`UNIQ--vote-000005EF-QINU`"', '"`UNIQ--vote-000005F0-QINU`"', '"`UNIQ--vote-000005F1-QINU`"' (1)
starting dose:
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) ·
SC 4-6 units (or 1 unit per 10-15 g carbs) at meals; titrate to postprandial glucose (1) ·
SC 4-6 units (or 1 unit per 10-15 g carbs) at meals; titrate to postprandial glucose. Typical total daily dose 0.5-1 U/kg/d split between basal and prandial coverage in T1DM (1) ·
SR 150 mg PO once daily for 3 days, then 150 mg BID. XL 150 mg PO once daily for 4 days, then 300 mg once daily. Zyban (smoking cessation) 150 mg daily for 3 days, then 150 mg BID (1)
preparations:
100 U/mL (Humalog, Admelog, Lyumjev) vials, pens, cartridges; 200 U/mL Humalog KwikPen (1) ·
100 U/mL (NovoLog, Fiasp) vials, pens, cartridges (1) ·
15, 30, 60, 90, 120, 180, 240, 300 mg tablets (1/4 to 5 grains; 1 grain = 60 mg) (1) ·
25, 50, 75, 88, 100, 112, 125, 137, 150, 175, 200, 300 mcg tablets; oral capsule and IV/IM also available (1) ·
SR tablets 100, 150, 200 mg; XL tablets 150, 300 mg; IR tablets 75, 100 mg (less common); Aplenzin (bupropion hydrobromide) 174, 348, 522 mg (1)
fda max: (Click arrow to add another value)
routes:
onset:
1-2 weeks for antidepressant effect; smoking-cessation effect builds over the first 1-2 weeks (1) ·
SC: 5-15 minutes (Fiasp 2.5 minutes earlier on average) (1) ·
SC: 5-15 minutes; ultra-rapid Lyumjev faster (1) ·
TSH normalization 4-8 weeks (1) ·
TSH normalization 4-8 weeks; symptomatic improvement weeks to months (1)
halflife:
Bupropion ~21 hours; hydroxybupropion (active metabolite) ~20-37 hours'"`UNIQ--ref-00000023-QINU`"' (1) ·
T4 ~7 days; T3 ~1 day'"`UNIQ--ref-0000001A-QINU`"' (1) ·
~1 hour SC'"`UNIQ--ref-00000589-QINU`"' (1) ·
~7 days (euthyroid); longer in hypothyroidism (~9-10 days), shorter in hyperthyroidism'"`UNIQ--ref-00000036-QINU`"' (1) ·
~80 minutes SC'"`UNIQ--ref-000005F2-QINU`"' (1)
bioavailability:
40-80% (oral); reduced by food, calcium, iron, PPIs, fiber; take fasting with water'"`UNIQ--ref-00000037-QINU`"' (1) ·
Variable; reduced by food, calcium, iron, PPIs'"`UNIQ--ref-0000001B-QINU`"' (1) ·
~100% from subcutaneous depot (2) ·
~5-20% (extensive first-pass), highly variable between individuals'"`UNIQ--ref-00000024-QINU`"' (1)
pregnancy:
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.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Insulin is the preferred glucose-lowering therapy in pregnancy; aspart is widely used.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Insulin is the preferred glucose-lowering therapy in pregnancy; lispro is widely used.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited human data; some animal cardiac signal not clearly replicated in human cohort studies; observational signals inconclusive.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Synthetic levothyroxine is the standard-of-care in pregnancy; desiccated thyroid use in pregnancy is not well studied.'"`UNIQ--ref-0000001C-QINU`"' (1)
legal:
[[USLegal:Prescription only|Rx-only]] in US (3) ·
[[USLegal:Prescription only|Rx-only]] in US (some OTC formulations exist) (1) ·
[[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults. Not controlled'"`UNIQ--ref-00000025-QINU`"' (1)
Showing below up to 5 results in range #1 to #5.