The usual schedule is one dose every other day, as needed, but no more frequently than one dose in a 24-hour period.1
RECOMMENDED DOSE1
Patients whose weight falls outside of these ranges should be dosed at 0.15 mg/kg. The injection volume for these patients should be calculated using one of the following:
- Multiply the patient weight in pounds by 0.0034 and round up the volume to the nearest 0.1 mL
- Multiply the patient weight in kilograms by 0.0075 and round up the volume to the nearest 0.1 mL
- RELISTOR is available in single-use vials for subcutaneous injection1
- No dose adjustment required in elderly patients1
- No dose adjustment required in patients with mild or moderate renal or hepatic impairment1
- Dose reduction by one half is recommended in patients with severe renal impairment (creatinine clearance less than 30 mL/min)1
- The effect of severe hepatic impairment or end-stage renal impairment requiring dialysis on the pharmacokinetics of methylnaltrexone has not been studied1
Patient and caregiver injection tools
- Printable RELISTOR injection guide
Download a guide for patients and caregivers with Instructions for Preparing and Giving an Injection of RELISTOR - RELISTOR injection instructional video
View an instructional video demonstrating how to inject RELISTOR and order a copy for your patients

