Pentagastrin

Jump to: navigation, search
Pentagastrin
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Rabin Bista, M.B.B.S. [2]

Disclaimer

WikiDoc MAKES NO GUARANTEE OF VALIDITY. WikiDoc is not a professional health care provider, nor is it a suitable replacement for a licensed healthcare provider. WikiDoc is intended to be an educational tool, not a tool for any form of healthcare delivery. The educational content on WikiDoc drug pages is based upon the FDA package insert, National Library of Medicine content and practice guidelines / consensus statements. WikiDoc does not promote the administration of any medication or device that is not consistent with its labeling. Please read our full disclaimer here.

Overview

Pentagastrin is a diagnostic aid that is FDA approved for the diagnosis of Anacidity, Hypersecretory conditions. Common adverse reactions include Nausea, abdominal cramps.

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

Indications

Dosage

  • The intravenous infusion dose has ranged from 0.1 to 12 mcg (0.0001 to 0.012 mg) per kg of body weight per hour administered in a 0.9% sodium chloride injection. It can also be used as a subcutaneous injection for gastric function study with a dose of 6 mcg (0.006 mg) per kg of body weight.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Pentagastrin in adult patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Pentagastrin in adult patients.

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

There is limited information regarding FDA-Labeled Use of Pentagastrin in pediatric patients.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Pentagastrin in pediatric patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Pentagastrin in pediatric patients.

Contraindications

There is limited information regarding Pentagastrin Contraindications in the drug label.

Warnings

There is limited information regarding Pentagastrin Warnings' in the drug label.

Adverse Reactions

Clinical Trials Experience

Postmarketing Experience

There is limited information regarding Postmarketing Experience of Pentagastrin in the drug label.

Drug Interactions

  • The following may affect pentagastrin’s action:

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA):

  • Pregnancy Category


Pregnancy Category (AUS):

  • Australian Drug Evaluation Committee (ADEC) Pregnancy Category

There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Pentagastrin in women who are pregnant.

Labor and Delivery

There is no FDA guidance on use of Pentagastrin during labor and delivery.

Nursing Mothers

There is no FDA guidance on the use of Pentagastrin with respect to nursing mothers.

Pediatric Use

There is no FDA guidance on the use of Pentagastrin with respect to pediatric patients.

Geriatic Use

There is no FDA guidance on the use of Pentagastrin with respect to geriatric patients.

Gender

There is no FDA guidance on the use of Pentagastrin with respect to specific gender populations.

Race

There is no FDA guidance on the use of Pentagastrin with respect to specific racial populations.

Renal Impairment

There is no FDA guidance on the use of Pentagastrin in patients with renal impairment.

Hepatic Impairment

There is no FDA guidance on the use of Pentagastrin in patients with hepatic impairment.

Females of Reproductive Potential and Males

There is no FDA guidance on the use of Pentagastrin in women of reproductive potentials and males.

Immunocompromised Patients

There is no FDA guidance one the use of Pentagastrin in patients who are immunocompromised.

Administration and Monitoring

Administration

  • intravenous infusion

Monitoring

There is limited information regarding Monitoring of Pentagastrin in the drug label.

IV Compatibility

There is limited information regarding IV Compatibility of Pentagastrin in the drug label.

Overdosage

There is limited information regarding Overdose of Pentagastrin in the drug label.

Pharmacology

Pentagastrin Wiki Str.png
Pentagastrin
Systematic (IUPAC) name
N-(tert-butoxycarbonyl)-β-alanyl-L-tryptophyl-L-methionyl-L-α-aspartyl-L-phenylalaninamide[2]
Identifiers
CAS number 5534-95-2
ATC code V04CG04
PubChem 9853654
DrugBank DB00183
Chemical data
Formula C37H49N7O9S 
Mol. mass 767.893 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability ?
Metabolism ?
Half life 10 minutes or less
Excretion ?
Therapeutic considerations
Pregnancy cat.

?

Legal status
Routes ?

Mechanism of Action

  • The exact mechanism by which Pentagastrin stimulates gastric acid, pepsin, and intrinsic factor secretion is unknown; however, since Pentagastrin is an analogue of natural gastrin, it is believed that it excites the oxyntic cells of the stomach to secrete to their maximum capacity. Pentagastrin stimulates pancreatic secretion, especially when administered in large intramuscular doses. Pentagastrin also increases gastrointestinal motility by a direct effect on the intestinal smooth muscle. However, it delays gastric emptying time probably by stimulation of terminal antral contractions, which enhance retropulsion.

Structure

  • Pentagastrin, a diagnostic aid, is supplied as a sterile solution (1.1 ml/5 ml vial) containing:
250 micrograms Pentagastrin per ml
0.8 mg Methylparaben and 0.2 mg Propylparaben per mL
0.9 mg sodium chloride per mL
pH 8

Pharmacodynamics

There is limited information regarding Pharmacodynamics of Pentagastrin in the drug label.

Pharmacokinetics

  • The exact mechanism by which Pentagastrin stimulates gastric acid, pepsin, and intrinsic factor secretion is unknown; however, since Pentagastrin is an analogue of natural gastrin, it is believed that it excites the oxyntic cells of the stomach to secrete to their maximum capacity. Pentagastrin stimulates pancreatic secretion, especially when administered in large intramuscular doses. Pentagastrin also increases gastrointestinal motility by a direct effect on the intestinal smooth muscle. However, it delays gastric emptying time probably by stimulation of terminal antral contractions, which enhance retropulsion.

Nonclinical Toxicology

There is limited information regarding Nonclinical Toxicology of Pentagastrin in the drug label.

Clinical Studies

There is limited information regarding Clinical Studies of Pentagastrin in the drug label.

How Supplied

There is limited information regarding Pentagastrin How Supplied in the drug label.

Storage

  • Keep refrigerated between 2◦ and 8◦C. Protect from light

Images

Drug Images

Package and Label Display Panel

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

This image is provided by the National Library of Medicine.

Ingredients and Appearance

This image is provided by the National Library of Medicine.

Patient Counseling Information

There is limited information regarding Patient Counseling Information of Pentagastrin in the drug label.

Precautions with Alcohol

  • Alcohol-Pentagastrin interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.

Brand Names

  • PENTAGASTRIN ®[3]

Look-Alike Drug Names

There is limited information regarding Pentagastrin Look-Alike Drug Names in the drug label.

Drug Shortage Status

Price

References

The contents of this FDA label are provided by the National Library of Medicine.

  1. Barrowman JA, Herxheimer A, Kits TP (1970). "Unwanted effects of pentagastrin". Clin Pharmacol Ther. 11 (6): 862–8. PMID 5481572.
  2. Martindale (1993). The extra pharmacopoeia (30th ed.). London: Pharmaceutical Press. ISBN 978-0853693000.
  3. "PENTAGASTRIN".

Linked-in.jpg