How to Take Treatment


How to Take

Three rules for taking PROMACTA

PROMACTA® (eltrombopag) can help build your child’s platelet levels. To take PROMACTA properly, follow a few simple rules:


Take PROMACTA every day.

To keep things simple for both you and your child, he or she should take PROMACTA at the same time every day. It might be easiest if your child takes it at bedtime or first thing in the morning.


Do not take PROMACTA with food.

Your child should take PROMACTA on an empty stomach, either 1 hour before or 2 hours after eating.


Do not take PROMACTA with calcium-rich products. 

Too much calcium (more than 50 mg) keeps PROMACTA from working properly.*


To get the full benefit of PROMACTA, your child should take it at least 2 hours before or 4 hours after eating or drinking dairy products or calcium-fortified juices. 


*Just 1 slice of American cheese has 150 mg of calcium.

Here are a few examples of how to make it work:


If school starts at 8 AM…

Have your child take PROMACTA at 6 AM. Wait 1 hour before he or she has a low-calcium breakfast and then by the time school starts, rest assured knowing that even if your child has a calcium-rich snack, he or she is covered for the rest of day. 


If bedtime is 9 PM…

Your child’s last calcium-rich food should be before 5 PM. Dinner should be no later than 7 PM and contain less than 50 mg calcium. Have him or her take PROMACTA right before bed at 9 PM, and you’re all set. 

High-calcium foods to avoid

These sample items (not all are foods) may have more than 50 mg of calcium. Avoid them for 4 hours before and 2 hours after taking PROMACTA.

Dairy products



Examples include:

  • milk (including almond and rice milk)
  • yogurt (including frozen yogurt)
  • cheese
  • ice cream

Calcium-fortified foods



Examples include:

  • some types of oatmeal
  • orange juice
  • dry cereal
  • bread

Leafy green vegetables



Examples include:

  • collard greens
  • spinach

Tofu and other soy products



Examples include:

  • tofu
  • soy milk

Antacids, vitamins, and supplements



Examples include:

  • antacids
  • vitamins
  • supplements containing iron, calcium, aluminum, magnesium, selenium, or zinc

Some types of seafood



Examples include:

  • clams
  • trout

How well do you know your calcium?

Which of these is a good option for a low-calcium breakfast?

Vitamin-fortified oatmeal
Scrambled egg and apple

Try again : One 5-ounce container of yogurt has 196 mg of calcium.

Try again : 1 packet of fortified oatmeal has 98 mg of calcium.

Correct : 1/4 cup of scrambled egg and 6 ounces of apple slices make up 36 mg of calcium.

Need the calcium content of specific foods?

Check out the USDA database.