Understanding Side Effects

What you should know about PROMACTA

PROMACTA has an established safety profile

What are the side effects of PROMACTA?

In clinical trials, the 4 most common side effects of PROMACTA® (eltrombopag) in adults with low platelets due to persistent or chronic immune thrombocytopenia (ITP) were:

Nausea 9%

Diarrhea 9%

Upper respiratory tract infection 7%

Vomiting 6%

Other common side effects in these clinical trials included:
  • urinary tract infection
  • pain or swelling (inflammation) in your throat or mouth (oropharyngeal pain and pharyngitis)
  • abnormal liver function tests
  • muscle aches


No matter what the treatment, always let your doctor know if you are having any side effects. It's important not to stop or change the way you take PROMACTA without talking to your doctor.


Symptoms may include runny nose, stuffy nose, and sneezing.


For more information about PROMACTA clinical trials, click here.