METHYLENE BLUE (METH uh leen bloo) is a dye that is used in certain diagnostic procedures.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
glucose-6-phosphate dehydrogenase (G6PD) deficiency
an unusual or allergic reaction to methylene blue, phenothiazines, thiazide diuretics, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Take after meals. Take your doses at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
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.
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Do not take this medicine with any of the following medications:
certain medicines for depression or anxiety
MAOIs like Marplan, Nardil, and Parnate
St. John's wort
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.
Visit your doctor or health care professional for regular checks on your progress.
Side effects that you should report to your doctor or health care professional as soon as possible:
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
blue-green coloration of urine and stools
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.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from moisture and light. Throw away any unused medicine after the expiration date.
METHYLENE BLUE (METH uh leen bloo) is used to treat methemoglobinemia. This is a condition in which the blood loses its ability to carry oxygen through the body.
This medicine is for injection into a vein. It is given by a health care professional in a hospital or clinic setting.
This does not apply.
Your condition will be monitored carefully while you are receiving this medicine.
This drug is given in a hospital or clinic and will not be stored at home.