The nurse is caring for a client taking levothyroxine (Synthroid) for hypothyroidism. Which finding indicates a side effect of this medication?

  • weight loss
  • weight gain
  • light sensitivity
  • excessive sleepiness
Number 1 is correct.
A side effect of levothyroxine is weight loss. Weight gain and light sensitivity are not side effects of this medication. Levothyroxine can cause insomnia, not excessive sleepiness.