Metoclopramide IV Dosing in CKD Stage 5
For patients with end-stage renal disease (CKD stage 5, creatinine clearance <15 mL/min or on hemodialysis), initiate metoclopramide at approximately 5 mg IV (half the standard 10 mg dose), administered slowly over 1–2 minutes, and adjust based on clinical response. 1
Dosing Algorithm for ESRD Patients
Initial Dosing
- Start at 50% of the standard dose (5 mg instead of 10 mg IV) for patients with creatinine clearance below 40 mL/min 1
- Administer slowly over 1–2 minutes to minimize adverse effects 1
- The FDA label explicitly states that therapy should be initiated at approximately one-half the recommended dosage in patients with severely impaired renal function 1
Dose Adjustment Strategy
- Increase or decrease the dose based on clinical efficacy and safety, rather than using a fixed reduced dose 1
- Monitor closely for extrapyramidal symptoms and other adverse effects, as metoclopramide undergoes primarily renal excretion 1
Hemodialysis Considerations
- Supplemental dosing after hemodialysis is NOT necessary 2
- Metoclopramide losses during hemodialysis are relatively small compared to total body stores 2
- Following the general principle for dialyzable medications, administer metoclopramide after hemodialysis on dialysis days to prevent premature drug removal 3
- Hemodialysis clearance of metoclopramide is minimal and does not significantly contribute to total drug elimination 2
Pharmacokinetic Rationale
Renal vs. Non-Renal Clearance
- Renal clearance accounts for ≤21% of total metoclopramide plasma clearance, even in patients with normal kidney function 2
- Non-renal clearance (hepatic metabolism) is also reduced in ESRD patients, accounting for most of the reduction in total plasma clearance 2
- The elimination half-life is prolonged in renal impairment, correlating directly with creatinine clearance 2
Why Dose Reduction Is Critical
- The comparatively small plasma clearances in ESRD patients mean that standard doses will lead to drug accumulation 2
- Metoclopramide undergoes minimal hepatic metabolism (primarily simple conjugation), so reduced renal function directly impacts elimination 1
Common Pitfalls to Avoid
- Do not use the full 10 mg dose in patients with creatinine clearance <40 mL/min without first attempting the reduced dose 1
- Do not assume hemodialysis will remove significant amounts of metoclopramide—it will not, so supplemental dosing is unnecessary 2
- Do not overlook non-renal clearance reduction—even though metoclopramide is renally excreted, hepatic clearance is also impaired in ESRD, compounding accumulation risk 2
- Avoid giving metoclopramide immediately before dialysis on dialysis days; instead, administer after the session 3
Monitoring Parameters
- Assess for extrapyramidal symptoms (acute dystonic reactions, tardive dyskinesia) at each visit, as these are dose-related and more likely with accumulation 1
- Evaluate clinical efficacy (relief of gastroparesis symptoms, antiemetic effect) to determine if dose escalation is needed 1
- Consider measuring serum creatinine and creatinine clearance periodically to reassess dosing requirements 1