Prussian Blue Side Effects

Medically reviewed by Drugs.com. Last updated on Sep 3, 2024.

Applies to prussian blue: oral capsule.

Precautions

It is very important that your doctor check your or your child's progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it. Blood, urine, and other laboratory exams may be needed to check for unwanted effects.

This medicine may decrease gastrointestinal motility, which can increase the radiation absorbed dose to your stomach. Check with your doctor right away if you have constipation while using this medicine.

This medicine may cause hypokalemia (low potassium in the blood). Check with your doctor right away if you have dry mouth, increased thirst, muscle cramps, nausea or vomiting, or uneven heartbeat while using this medicine.

This medicine may cause your stools to appear in color blue. This is normal and nothing to worry about. Also, if you open the capsules and mixed them with food, your mouth and teeth may be colored blue.

Serious side effects of prussian blue

Along with its needed effects, prussian blue may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking prussian blue:

Other side effects of prussian blue

Some side effects of prussian blue may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

For healthcare professionals

Applies to prussian blue: oral capsule.

General adverse events

The most common adverse event was constipation.^[Ref]

Gastrointestinal

• Very common (10% or more): Constipation (24%)
• Frequency not reported: Gastrointestinal motility decreased, stools blue color, oral mucosa and dentition colored blue^[Ref]

Metabolic

• Common (1% to 10%): Hypokalemia^[Ref]

See also:

Frequently asked questions

• My stool has changed color. What does it mean?

Further information

Prussian blue side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer