Levothyroxine
- TRADE NAMES: Berlthyrox; Droxine; Eferox; Eltroxin; Levo-T; Levothyroid (Forest); Levothyrox; Levoxyl (Monarch); Synthroid (AbbVie); Thevier; Unithroid (Watson)
- INDICATIONS: Hypothyroidism
- SYNONYM: L-thyroxine sodium; T4
- CLASS: Thyroid hormone, synthetic
- HALF-LIFE: 6–7 days
CLINICALLY IMPORTANT, POTENTIALLY HAZARDOUS INTERACTIONS WITH:
Colesevelam, Dicumarol, Lanthanum, Oral anticoagulants, Orlistat, Propranolol, Raloxifene, Red Rice Yeast, Ritonavir, Warfarin
PREGNANCY CATEGORY: A
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SKIN.
HAIR.
NAILS.
CARDIOVASCULAR.
CENTRAL NERVOUS SYSTEM.
ENDOCRINE/METABOLIC.
GASTROINTESTINAL/HEPATIC.
NEUROMUSCULAR/SKELETAL.
RESPIRATORY.
OTHER.
Page last updated 07/31/2023
Symbol key
Incidence
- <1%
- 1-5%
- 5-10%
- 10-15%
- 15-20%
- 20-30%
- >30%
Warnings in other populations
- Breast feeding
- Geriatric
- Pediatric