Methylene Blue Injection

What is this medication?

METHYLENE BLUE (METH uh leen bloo) treats a condition that reduces the amount of oxygen delivered to body tissues (methemoglobinemia). It works by helping red blood cells carry oxygen from the lungs to the rest of the body.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): PROVAYBLUE

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

• G6PD deficiency
• Kidney disease
• An unusual or allergic reaction to methylene blue, other medications, foods, dyes, or preservatives
• Pregnant or trying to get pregnant
• Breastfeeding

How should I use this medication?

This medication is injected into a vein. It is given by your care team in a hospital or clinic setting.

Talk to your care team about the use of this medication in children. While it may be prescribed for children as young as newborns for selected conditions, precautions do apply.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

This does not apply. This medication is not for regular use.

What may interact with this medication?

Do not take this medication with any of the following:

• Certain medications for depression, anxiety, or other mental health conditions
• Certain medications for migraines, such as sumatriptan
• Dextromethorphan
• Linezolid
• Opioids
• Tryptophan
• St. John's wort
• Stimulant medications for ADHD, weight loss, or staying awake

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Your condition will be monitored carefully while you are receiving this medication.

This medication may affect your coordination, reaction time, or judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

• Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
• Hemolytic anemia—unusual weakness or fatigue, dizziness, headache, trouble breathing, dark urine, yellowing skin or eyes
• Irritability, confusion, fast or irregular heartbeat, muscle stiffness, twitching muscles, sweating, high fever, seizure, chills, vomiting, diarrhea, which may be signs of serotonin syndrome

Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):

• Change in skin color
• Change in urine color
• Diarrhea
• Dizziness
• Headache
• Nausea

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

This medication is given in a hospital or clinic. It will not be stored at home.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.