Intravenous Mycophenolate Mofetil Must Be Infused with 5% Dextrose in Water (D5W)
Mycophenolate mofetil for intravenous administration must be reconstituted and diluted in 5% dextrose in water (D5W) only—never use normal saline or other solutions. 1
Preparation and Administration Requirements
Reconstitution Specifications
- Dilution fluid: 5% dextrose in water (D5W) exclusively 1
- Infusion time: Administer over no less than 2 hours 1
- Route: Use a dedicated peripheral venous catheter 2
Critical Safety Points
Do not mix or infuse mycophenolate mofetil with any other intravenous solutions or medications. The drug is chemically incompatible with solutions other than D5W, and mixing with normal saline or other fluids can cause precipitation or degradation of the medication.
Dosing by Indication
The standard IV doses are 1:
- Kidney transplant: 1 g IV over ≥2 hours, twice daily (2 g total daily dose)
- Heart transplant: 1.5 g IV over ≥2 hours, twice daily (3 g total daily dose)
- Liver transplant: 1 g IV over ≥2 hours, twice daily (2 g total daily dose)
Occupational Safety Considerations
When handling mycophenolate mofetil for IV preparation:
- Avoid inhalation or direct contact with skin or mucous membranes
- If contact occurs, wash thoroughly with soap and water
- For ocular contact, rinse eyes with plain water 1
Transition to Oral Therapy
Switch to oral mycophenolate mofetil as soon as the patient can tolerate oral medications, typically within the first few days post-transplant. The oral dose should match the total daily IV dose 1.
Common Pitfall to Avoid
Never use normal saline (0.9% NaCl) as the diluent for IV mycophenolate mofetil. While normal saline is the standard IV fluid for many medications and for vascular volume replacement 3, 4, it is incompatible with mycophenolate mofetil and will compromise drug stability and efficacy. This is a drug-specific requirement that differs from general IV fluid management principles.