Medication Safety Issues
Levothyroxine may be confused with lamoTRIgine, Lanoxin, levoFLOXacin, liothyronine
Levoxyl may be confused with Lanoxin, Levaquin, Luvox
Synthroid may be confused with Symmetrel
Levothyroxine is identified in the Screening Tool of Older Person's Prescriptions (STOPP) criteria as a potentially inappropriate medication in older adults (≥65 years of age) for the treatment of subclinical hypothyroidism (O’Mahony 2023).
Oral solutions vary in concentration; consider total dosage in terms of mcg and not volume (mL) when converting between oral solution products.
Significant differences exist between oral and IV dosing. Use caution when converting from one route of administration to another.
To avoid errors due to misinterpretation of a decimal point, always express dosage in mcg (not mg).
