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Methylene Blue

Urinary tract infection (UTI) facts

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Methylene Blue

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Methylene Blue Drug Center

Medical Editor: John P. Cunha, DO, FACOEP

Methylene Blue (methylene blue) injection is used to treat methemoglobinemia. Methylene blue oral is used to treat methemoglobinemia and urinary tract infections. It is also used as a dye or staining agent to make certain body fluids and tissues easier to view during surgery or on an x-ray or other diagnostic exam. Methylene Blue is a form of hemoglobin, a substance in blood. This medication is available in generic form. Common side effects include abnormal urine or stool color. Less frequent side effects include mild bladder irritation, dizziness, headache, sweating, nausea/vomiting, diarrhea, frequent urination, or stomach cramps.

Methylene Blue is dosed 0.045 to 0.09 mL per pound of body weight. Methylene Blue may interact with acetazolamide, antacids, sodium bicarbonate, or diuretics (water pills). Tell your doctor all medications you are taking. Methylene blue may cause harm to a fetus, but the medication may sometimes be used during pregnancy. Your doctor will determine whether or not this medication is safe. Tell your doctor if you are pregnant. It is not known whether Methylene Blue passes into breast milk or if it could harm a nursing baby. Consult your doctor before breast-feeding.

Our Methylene Blue (methylene blue injection) Drug Center provides a comprehensive view of available drug information as well as related drugs, user reviews, supplements, and diseases and conditions articles.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Methylene Blue Prescribing Information: Indications & Dosage

Methylene Blue structural formula illustration

Drug induced methemoglobinemia.

Read the complete drug monograph for Methylene Blue »

What is Patient information?

Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.

Methylene Blue Patient Information: Side Effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • severe nausea, vomiting, or stomach pain;
  • pain in your chest or behind your breast bone;
  • pale or blue skin;
  • high fever, fast or pounding heartbeats, trouble breathing; or
  • confusion, feeling like you might pass out.

Less serious side effects may include:

  • mild bla...

Read the complete patient information for Methylene Blue »

What is Consumer information?

A concise overview of the drug for the patient or caregiver from First DataBank.

Methylene Blue Consumer Information: Uses

Consult your pharmacist.

HOW TO USE: Consult your pharmacist.

SIDE EFFECTS: Consult your pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Consult your pharmacist.

DRUG INTERACTIONS: ...

Read the complete consumer information for Methylene Blue »

What is Methylene Blue Consumer Information?

Warnings - Uses - How to Use - Side Effects - Precautions - Drug Interactions and More

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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