METHYLENE BLUE

Standard Prescription

methylene blue__mg IV x 1 dose (__mg/kg/dose) or (__mg/m2/dose)

Dosages

Methemoglobinemia:
1 to 2 mg/kg/dose or 25 to 50 mg/m2/dose IV over 5 min. 
May repeat in 1 hr PRN.

Mechanism of Action

Antidote for acquired methemoglobinemia; oxidizing agent

Forms Supplied

injection: 1%, 5 mL amp. (10 mg/mL)

Comments

Do not inject SC or IT

May cause methemoglobinemia with high doses.

Use with caution in renal insufficiency, and G6PD deficiency

Causes blue-green discolouration of urine and feces.

References

44, 129

Last Edited

2019-06-29 02:52:49