The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Signs of having too much thyroid hormones in the body:
- Nervousness
- Irritability
- Tiredness
- Muscle weakness
- Trouble tolerating heat
- Trouble sleeping
- Shaky hands
- Fast heartbeat
- Diarrhea
- Weight loss
- Mood swings
Source: DailyMed
The following NP Thyroid side effects have also been reported
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Get emergency help immediately if any of the following symptoms of overdose occur:
Changes in appetite
changes in menstrual periods
fast or irregular heartbeat
hand tremors
headache
irritability
leg cramps
nervousness
sensitivity to heat
shortness of breath
sweating
trouble sleeping
vomiting
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.





