Methylene Blue (Systemic)

Brand Names : Urolene Blue, aniline violet, methylthionine chloride, tetramethylthionine chloride

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Symptoms of overdose

Anxiety; back pain; bluish fingernails, lips, or skin; chest pain; chills; confusion; difficulty in breathing; dizziness; headache; leg pain; nausea and vomiting; severe sweating; stomach pain; trembling; unusual tiredness or weakness

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More common

Greenish blue to blue discoloration of urine and stools

Less common

Diarrhea; nausea and vomiting; painful urination or increased need to urinate (with tablet form)

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.