Understanding Side Effects


What are the most common side effects of PROMACTA?

The most common side effects of PROMACTA® (eltrombopag) in children 1 year and older when used to treat second‑line chronic ITP are:

  • Upper respiratory tract infection (symptoms may include runny nose, stuffy nose, and sneezing), 17%
  • Pain or swelling (inflammation) in their nose or throat (nasopharyngitis), 12%


No other side effects occurred in more than 9% of children in the 2 main pediatric studies of PROMACTA


Only 5% of children treated with PROMACTA in clinical trials (8 of 156) had to stop taking therapy due to side effects

No matter what the treatment, always let your child’s doctor know about any side effects