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How to Take Treatment


How to Take How to Take

Your child can take PROMACTA at home or on the go.

PROMACTA is available in 4 tablet strengths (12.5 mg, 25 mg, 50 mg, and 75 mg), so your doctor can adjust your child's dose according to his or her needs.

Available in 4 strengths Available in 4 strengths
  • Store PROMACTA at room temperature between 68°F and 77°F

How and when your child should take PROMACTA.

Be sure your child takes PROMACTA exactly as instructed by the doctor:


  • Your child’s doctor may adjust the dose of PROMACTA to your child’s individual needs
  • Your child should not stop taking PROMACTA without you discussing it with his or her doctor first
  • Do not change your child’s dosage or schedule for taking PROMACTA unless his or her doctor tells you to change it
  • If your child misses a dose of PROMACTA, he or she should wait and take the next scheduled dose. Your child should not take more than 1 dose of PROMACTA in 1 day
  • If your child takes too much PROMACTA, he or she may be at a higher risk of serious side effects. Call your child’s doctor right away
  • Tell your child’s doctor about any bruising or bleeding that happens while your child is taking PROMACTA and after he or she stops taking it

PROMACTA should be taken on an empty stomach.

Your child should take PROMACTA at least 1 hour before or 2 hours after eating. Below are examples of foods your child may eat. These are just examples—be sure to talk with your doctor about your child’s meal plan. If your child has already taken PROMACTA, wait at least 1 hour before eating these foods. If your child has already eaten, wait at least 2 hours to take PROMACTA.


Dairy-free, low-calcium foods*

  • Fruits such as apples, cherries, bananas, berries, watermelon, and grapes
  • Nonleafy vegetables such as carrots, cucumbers, corn, tomatoes, potatoes, and mushrooms
  • Certain types of nuts such as pine nuts, and peanut butter
  • Eggs, and meats and poultry such as bacon, hot dogs, beef, pork, chicken, salami, corned beef, sausage, ham, and turkey
  • Certain types of fish such as swordfish, flounder, and bass
  • Snacks such as bagels, popcorn, pretzels, and raisins
  • Desserts such as gelatin, cookies, and angel food cake


Example snack: A cup of sliced apples dipped in peanut butter (1 tablespoon). Approximate total calcium content: 20 mg.


Make sure that your child’s total meal contains less than 50 mg of calcium if your child plans to take or has taken PROMACTA within the 1- to 2-hour time frame.

A good resource for checking the calcium content of hundreds of foods is the National Nutrient Database.

PROMACTA cannot be taken with calcium-rich foods and supplements.

Your child should take PROMACTA at least 2 hours before or 4 hours after taking other medications, calcium-rich foods, and certain supplements. These can change how much of PROMACTA your child’s body absorbs.


Calcium-rich foods and supplements include:

  • Dairy products such as frozen and unfrozen yogurt, buttermilk, cheese, pudding, milk, and ice cream
  • Calcium-rich and fortified foods (those with added calcium) such as some types of oatmeal, orange juice, dry cereal, and bread
  • Some types of seafood such as clams or trout
  • Leafy green vegetables such as collard greens and spinach
  • Tofu or other soy products
  • Antacids used to treat stomach ulcers or heartburn; vitamins; or supplements such as iron, calcium, aluminum, magnesium, selenium, or zinc. Talk with your doctor before allowing your child to take any over-the-counter medications, herbs, or supplements


Note: many dairy alternatives, such as almond or rice milk, may still contain calcium. Make sure to check these products before consuming.


To help you remember how and when to take PROMACTA, follow the before-or-after rule:


Watch your food intake


Watch your dairy intake


This includes calcium-rich foods, other medications (such as antacids), or supplements. 


You may find it convenient to have your child take PROMACTA at bedtime.

*All foods in this list have less than or equal to 50 mg of calcium. Food allergies should be a consideration with any change in diet.

All foods in this list have more than 50 mg of calcium.