Precautions

Drug information provided by: IBM Micromedex

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly. Blood tests will be needed to check for unwanted effects.

Tell your doctor if you are using ruxolitinib (Jakafi®) before starting this medicine. Using these medicines together may cause serious side effects.

This medicine may cause encephalopathy (brain disease), including Wernicke’s encephalopathy, which may be serious and life-threatening. Wernicke’s encephalopathy is caused by acute thiamine (Vitamin B1) deficiency. Check with your doctor right away if you have confusion, drowsiness, double vision, diarrhea, nausea, vomiting, problems with muscle control or coordination, shakiness and unsteady walk, trembling, trouble remembering, and weight loss (leading to malnutrition and lower thiamine levels).

Fedratinib will lower the number of some types of blood cells in your body. Because of this, you may bleed or get infections more easily. To help with these problems, avoid being near people who are sick or have infections. Wash your hands often. Stay away from rough sports or other situations where you could be bruised, cut, or injured. Brush and floss your teeth gently. Be careful when using sharp objects, including razors and fingernail clippers.

This medicine often causes diarrhea, nausea, and vomiting. However, it is very important that you continue to receive the medicine even if you begin to feel ill. Your doctor may give you a medicine to help prevent these side effects.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.