IV Reglan (Metoclopramide) 10mg Does NOT Come Pre-Mixed in a 50cc Bag
Metoclopramide 10mg is supplied as a concentrated 2 mL single-dose vial (5 mg/mL) and must be diluted by the pharmacy or clinician when doses exceed 10mg or when infusion is required. 1
Standard Formulation and Preparation
- Commercial packaging: Metoclopramide injection comes as 10 mg/2 mL single-dose vials 1
- For 10mg doses: Can be given as undiluted IV push over 1-2 minutes 1
- For doses >10mg: Must be diluted in 50 mL of parenteral solution 1
When 50 mL Dilution is Required
The FDA label specifically states that "For doses in excess of 10 mg, metoclopramide injection should be diluted in 50 mL of a parenteral solution" 1. This applies to:
- High-dose chemotherapy protocols (1-2 mg/kg doses for highly emetogenic regimens like cisplatin)
- Infusions over 15 minutes (recommended to reduce akathisia risk)
Dilution Solutions and Stability
Preferred diluent: Normal saline (0.9% NaCl) - can be frozen for up to 4 weeks 1
Alternative compatible solutions 1:
- Dextrose 5% in water (D5W) - do NOT freeze when mixed
- D5W in 0.45% NaCl
- Ringer's injection
- Lactated Ringer's
Storage after dilution:
- Up to 48 hours if protected from light
- Up to 24 hours under normal light conditions
Clinical Implications for Administration
For standard 10mg antiemetic dosing: The vial can be given undiluted as IV push over 1-2 minutes 1
To minimize akathisia (which occurs in 24.7% with 2-minute bolus vs 5.8% with slow infusion): Dilute the 10mg dose in 50 mL and infuse over 15 minutes 2. This significantly reduces extrapyramidal symptoms without compromising efficacy 3, 2.
Key Pitfall to Avoid
Do not assume pre-mixed bags exist. Metoclopramide 10mg requires pharmacy preparation when dilution is needed. If you order "metoclopramide 10mg in 50cc," pharmacy must prepare this from the 2 mL vial - it is not commercially available as a pre-mixed product 1.