Metoclopramide (Page 4 of 6)

OVERDOSAGE

Symptoms of overdosage may include drowsiness, disorientation and extrapyramidal reactions. Anticholinergic or antiparkinson drugs or antihistamines with anticholinergic properties may be helpful in controlling the extrapyramidal reactions. Symptoms are self-limiting and usually disappear within 24 hours.

Hemodialysis removes relatively little metoclopramide, probably because of the small amount of the drug in blood relative to tissues. Similarly, continuous ambulatory peritoneal dialysis does not remove significant amounts of drug. It is unlikely that dosage would need to be adjusted to compensate for losses through dialysis. Dialysis is not likely to be an effective method of drug removal in overdose situations.

Unintentional overdose due to misadministration has been reported in infants and children with the use of metoclopramide syrup. While there was no consistent pattern to the reports associated with these overdoses, events included seizures, extrapyramidal reactions, and lethargy.

Methemoglobinemia has occurred in premature and full-term neonates who were given overdoses of metoclopramide (1 to 4 mg/kg/day orally, intramuscularly or intravenously for 1 to 3 or more days). Methemoglobinemia can be reversed by the intravenous administration of methylene blue. However, methylene blue may cause hemolytic anemia in patients with G6PD deficiency, which may be fatal (see PRECAUTIONS – Other Special Populations).

DOSAGE AND ADMINISTRATION

For the Relief of Symptoms Associated with Diabetic Gastroparesis (Diabetic Gastric Stasis)

If only the earliest manifestations of diabetic gastric stasis are present, oral administration of metoclopramide may be initiated. However, if severe symptoms are present, therapy should begin with metoclopramide injection (IM or IV). Doses of 10 mg may be administered slowly by the intravenous route over a 1- to 2-minute period.

Administration of metoclopramide injection up to 10 days may be required before symptoms subside, at which time oral administration of metoclopramide may be instituted. The physician should make a thorough assessment of the risks and benefits prior to prescribing further metoclopramide treatment.

For the Prevention of Nausea and Vomiting Associated with Emetogenic Cancer Chemotherapy

Intravenous infusions should be made slowly over a period of not less than 15 minutes, 30 minutes before beginning cancer chemotherapy and repeated every 2 hours for two doses, then every 3 hours for three doses.

The initial two doses should be 2 mg/kg if highly emetogenic drugs such as cisplatin or dacarbazine are used alone or in combination. For less emetogenic regimens, 1 mg/kg per dose may be adequate.

For doses in excess of 10 mg, metoclopramide injection should be diluted in 50 mL of a parenteral solution.

The preferred parenteral solution is Sodium Chloride Injection (normal saline), which when combined with metoclopramide injection, can be stored frozen for up to 4 weeks. Metoclopramide injection is degraded when admixed and frozen with Dextrose-5% in Water. Metoclopramide injection diluted in Sodium Chloride Injection, Dextrose-5% in Water, Dextrose-5% in 0.45% Sodium Chloride, Ringer’s Injection, or Lactated Ringer’s Injection may be stored up to 48 hours (without freezing) after preparation if protected from light. All dilutions may be stored unprotected from light under normal light conditions up to 24 hours after preparation.

If acute dystonic reactions should occur, inject 50 mg Benadryl® (diphenhydramine hydrochloride) intramuscularly, and the symptoms usually will subside.

For the Prevention of Postoperative Nausea and Vomiting

Metoclopramide injection should be given intramuscularly near the end of surgery. The usual adult dose is 10 mg; however, doses of 20 mg may be used.

To Facilitate Small Bowel Intubation

If the tube has not passed the pylorus with conventional maneuvers in 10 minutes, a single dose (undiluted) may be administered slowly by the intravenous route over a 1- to 2-minute period.

The recommended single dose is: Pediatric patients above 14 years of age and adults — 10 mg metoclopramide base. Pediatric patients (6 to 14 years of age) — 2.5 to 5 mg metoclopramide base; (under 6 years of age) — 0.1 mg/kg metoclopramide base.

To Aid in Radiological Examinations

In patients where delayed gastric emptying interferes with radiological examination of the stomach and/or small intestine, a single dose may be administered slowly by the intravenous route over a 1- to 2-minute period.

For dosage, see intubation above.

Use in Patients With Renal or Hepatic Impairment

Since metoclopramide is excreted principally through the kidneys, in those patients whose creatinine clearance is below 40 mL/min, therapy should be initiated at approximately one-half the recommended dosage. Depending upon clinical efficacy and safety considerations, the dosage may be increased or decreased as appropriate.

See OVERDOSAGEsection for information regarding dialysis.

Metoclopramide undergoes minimal hepatic metabolism, except for simple conjugation. Its safe use has been described in patients with advanced liver disease whose renal function was normal.

NOTE: Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.

ADMIXTURES COMPATIBILITIES

Metoclopramide injection is compatible for mixing and injection with the following dosage forms to the extent indicated below:

Physically and Chemically Compatible Up to 48 Hours

Cimetidine Hydrochloride (SK&F), Mannitol, USP (Abbott), Potassium Acetate, USP (Invenex), Potassium Phosphate, USP (Invenex).

Physically Compatible Up to 48 Hours

Ascorbic Acid, USP (Abbott), Benztropine Mesylate, USP (MS&D), Cytarabine, USP (Upjohn), Dexamethasone Sodium Phosphate, USP (ESI, MS&D), Diphenhydramine Hydrochloride, USP (Parke-Davis), Doxorubicin Hydrochloride, USP (Adria), Heparin Sodium, USP (ESI), Hydrocortisone Sodium Phosphate (MS&D), Lidocaine Hydrochloride, USP (ESI), Multi-Vitamin Infusion (must be refrigerated-USV), Vitamin B Complex with Ascorbic Acid (Roche).

Physically Compatible Up to 24 Hours

(Do not use if precipitation occurs)

Clindamycin Phosphate, USP (Upjohn), Cyclophosphamide, USP (Mead-Johnson), Insulin, USP (Lilly).

Conditionally Compatible

(Use within one hour after mixing or may be infused directly into the same running IV line)

Ampicillin Sodium, USP (Bristol), Cisplatin (Bristol), Erythromycin Lactobionate, USP (Abbott), Methotrexate Sodium, USP (Lederle), Penicillin G Potassium, USP (Squibb), Tetracycline Hydrochloride, USP (Lederle).

Incompatible

(Do Not Mix)

Cephalothin Sodium, USP (Lilly), Chloramphenicol Sodium, USP (Parke-Davis), Sodium Bicarbonate, USP (Abbott).

HOW SUPPLIED

Metoclopramide Injection, USP 5 mg metoclopramide base (as the monohydrochloride monohydrate) per mL; available in:

2 mL single dose vials (NDC 23155-240-31 ) in cartons of 25 (NDC 23155-240-41 ),

10 mL single dose vials (NDC 23155-240-32) in cartons of 25 (NDC 23155-240-42),

30 mL single dose vials (NDC 23155-240-33) in cartons of 25 (NDC 23155-240-43).

Container Total Contents # Concentration # Administration
2 mL single dose vial10 mg5 mg/mLFOR IV or IM ADMINISTRATION
10 mL single dose vial50 mg5 mg/mLFOR IV INFUSION ONLY; DILUTE BEFORE USING
30 mL single dose vial150 mg5 mg/mLFOR IV INFUSION ONLY; DILUTE BEFORE USING
# Metoclopramide base (as the monohydrochloride monohydrate)

Retain in carton until time of use. Do not store open single dose vials for later use, as they contain no preservative.

This product is light sensitive. It should be inspected before use and discarded if either color or particulate is observed.

Dilutions may be stored unprotected from light under normal light conditions up to 24 hours after preparation.

Metoclopramide Injection, USP should be stored at 20° to 25°C (68° to 77°F), excursions permitted between 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Other brands mentioned are trademarks of their respective owners.

Dispense with Medication Guide available at: www.avetpharma.com/product

Manufactured by:

Emcure Pharmaceuticals Ltd.,

Sanand, Ahmedabad — 382110, India.

Manufactured for:

Avet Pharmaceuticals Inc.

East Brunswick, NJ 08816

1.866.901.DRUG (3784)

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Revised: 08/2021

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