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Methylene Blue
What is it? Overview Usage Side Effects and Warnings

What is Methylene Blue?

(METH i leen bloo)

• This medicine is used to treat cyanide poisoning.

• This medicine is used to treat methemoglobinemia.

What are the precautions when taking this medicine?

• If you have anemia, talk with healthcare provider.

• Be careful if you have G6PD deficiency. Anemia may occur.

• Check medicines with healthcare provider. This medicine may not mix well with other medicines.

• Tell healthcare provider if you are pregnant or plan on getting pregnant.

• Tell healthcare provider if you are breast-feeding.

What are some possible side effects of this medicine?

• Headache.

• Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.

• Diarrhea.

• Change in color of urine or stool to blue or green.

Reasons to call healthcare provider immediately

• If you suspect an overdose, call your local poison control center or...