Polyethylene glycol


Polyethylene glycol
Accession Number
Small Molecule
Approved, Vet approved

Polyethylene glycol (Macrogol, PEG) is a polyether compound with many applications from industrial manufacturing to medicine. PEG is the basis of a number of laxatives (e.g., macrogol-containing products, such as Movicol and polyethylene glycol 3350, or SoftLax, MiraLAX,ClearLAX, Osmolax or GlycoLax). Whole bowel irrigation with polyethylene glycol and added electrolytes is used for bowel preparation before surgery or colonoscopy. Therapeutic classification is as an Osmotic Laxative that works by drawing water into the lumen of the intestinal tract. Shown to decrease consistency and increase weight of stool in constipated patients at low doses.

  • Macrogol
  • Macrogol 3350
  • Macrogol 4000
  • Macrogol 6000
  • PEG
  • PEO
  • POE
  • polyethylene glycol 3350
  • polyethylene glycol 4000
  • polyethylene glycol 6000
  • polyethylene oxide
  • polyoxyethylene
Product Ingredients
IngredientUNIICASInChI Key
Polyoxyethylene 23 lauryl etherN72LMW566GNot AvailableNot applicable
Generic Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing End
GavilaxPowder, for solution17 g/17gOralDirectrx2015-01-01Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/17gOralProficient Rx LP2006-09-06Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/1OralEmcure Pharmaceuticals Ltd.2011-09-28Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/17gOralNucare Pharmaceuticals,inc.2006-09-06Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/17gOralCardinal Health2006-05-24Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/1OralMetrics, Inc.2006-05-242009-02-28Us
Polyethylene Glycol 3350Powder, for solution17 g/1OralREMEDYREPACK INC.2014-08-052018-05-04Us
Polyethylene Glycol 3350Powder1 g/1gOralPhysicians Total Care, Inc.2004-10-07Not applicableUs
Polyethylene Glycol 3350Powder, for solution17 g/17gOralPaddock Laboratories, LLC2006-05-242020-10-31Us
Polyethylene Glycol 3350Powder1 g/1gOralLannett Company, Inc..2011-10-01Not applicableUs
Over the Counter Products
NameDosageStrengthRouteLabellerMarketing StartMarketing End
Basic Care ClearlaxPowder, for solution17 g/17gOralL. Perrigo Company2017-08-10Not applicableUs
Berkley and Jensen ClearlaxPowder, for solution17 g/17gOralBJWC2009-12-17Not applicableUs
BET-R-PrepPowder, for solution17 g/17gOralSatius Pharmaceuticals, Llc2017-11-27Not applicableUs
Care One ClearlaxPowder, for solution17 g/17gOralAmerican Sales Company2009-10-09Not applicableUs
ClarilaxPowder, for solution1 gOralPharmascience IncNot applicableNot applicableCanada
Clear LaxPowder, for solution17 g/17gOralMeijer Distribution2009-10-06Not applicableUs
Clear LaxPowder, for solution17 g/17gOralMeijer Distribution2009-10-062013-10-19Us
Clear LaxPowder, for solution17 g/17gOralH E B2009-10-08Not applicableUs
Clear LaxPowder, for solution17 g/17gOralMeijer Distribution2017-07-12Not applicableUs
Clear Lax Original Prescription StrengthPowder, for solution17 g/17gOralHYVEE INC2009-10-112020-03-23Us
Mixture Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing End
Aquasite DpsPolyethylene glycol (.2 %) + Dextran 70 (.1 %)Solution / dropsOphthalmicCiba Vision1993-12-312000-11-08Canada
Bi-peglytePolyethylene glycol (59.55 g) + Bisacodyl (5 mg) + Potassium chloride (0.76 g) + Sodium bicarbonate (1.69 g) + Sodium chloride (1.46 g) + Sodium sulfate (5.74 g)Kit; Powder, for solution; Tablet, delayed releaseOralPendopharm Division Of De Pharmascience Inc2010-06-06Not applicableCanada
Clenz-LytePolyethylene glycol (236 g/4L) + Potassium chloride (2.97 g/4L) + Sodium bicarbonate (6.74 g/4L) + Sodium chloride (5.86 g/4L) + Sodium sulfate (22.74 g/4L)Powder, for solutionNasogastric; OralPaddock Laboratories, Inc.2010-06-072010-06-07Us
ColytePolyethylene glycol (857.69 mg) + Potassium chloride (10.65 mg) + Sodium bicarbonate (24.02 mg) + Sodium chloride (20.87 mg) + Sodium sulfate (81.2 mg)Powder, for solutionNasogastric; OralPendopharm Division Of De Pharmascience Inc1986-12-31Not applicableCanada
ColytePolyethylene glycol (227.1 g/3.785L) + Potassium chloride (2.82 g/3.785L) + Sodium bicarbonate (6.36 g/3.785L) + Sodium chloride (5.53 g/3.785L) + Sodium sulfate decahydrate (21.5 g/3.785L)Powder, for solutionNasogastric; OralAlaven Pharmaceutical2010-09-012016-05-31Us
ColytePolyethylene glycol (240 g/4L) + Potassium chloride (2.98 g/4L) + Sodium bicarbonate (6.72 g/4L) + Sodium chloride (5.84 g/4L) + Sodium sulfate decahydrate (22.72 g/4L)Powder, for solutionNasogastricMEDA Pharmaceuticals2014-08-05Not applicableUs
Colyte with flavor packsPolyethylene glycol (240 g/4L) + Potassium chloride (2.98 g/4L) + Sodium bicarbonate (6.72 g/4L) + Sodium chloride (5.84 g/4L) + Sodium sulfate decahydrate (22.72 g/4L)Powder, for solutionNasogastric; OralAlaven Pharmaceutical1999-04-072016-08-31Us
Electropeg SolutionPolyethylene glycol (238.8 g) + Potassium chloride (3 g) + Sodium bicarbonate (6.7 g) + Sodium chloride (5.8 g) + Sodium sulfate (22.7 g)PowderOralTechnilab Pharma Inc.1998-04-201999-09-27Canada
GaviLyte - C TMPolyethylene glycol (240 g/278.26g) + Potassium chloride (2.98 g/278.26g) + Sodium bicarbonate (6.72 g/278.26g) + Sodium chloride (5.84 g/278.26g) + Sodium sulfate (22.72 g/278.26g)Powder, for solutionOralLupin Pharmaceuticals2009-01-06Not applicableUs
GaviLyte - NPolyethylene glycol (420 g/438.4g) + Potassium chloride (1.48 g/438.4g) + Sodium bicarbonate (5.72 g/438.4g) + Sodium chloride (11.2 g/438.4g)Powder, for solutionOralLupin Pharmaceuticals2009-05-28Not applicableUs
Unapproved/Other Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing End
GialaxPolyethylene glycol (1 g/1g)KitOralPhlight Pharma, Llc2011-10-01Not applicableUs
PCP 100 KitPolyethylene glycol (17 g/17g) + Bisacodyl (5 mg/1) + Magnesium citrate (1.745 g/29.6mL) + Metoclopramide hydrochloride monohydrate (10 mg/1) + Petrolatum (0.76 g/1g)KitOral; TopicalAsclemed Usa, Inc.2014-01-02Not applicableUs
PegPolyethylene glycol (55 g/100g) + Polyethylene glycol 400 (45 g/100g)CreamTopicalBiocellerex, Inc.2015-07-142016-01-05Us
Polyethylene Glycol 3350 NF PEGyLAXPolyethylene glycol (17 g/17g)Powder, for solutionOralMartin Ekwealor Pharmaceuticals, Inc.2013-12-16Not applicableUs
International/Other Brands
Carbowax / Colyte / Dulcolax Balance / Fortrans / GlycoLax / GoLYTELY / Halflytely / Lutrol E / MiraLAX / MoviPrep / Sentry polyox WSR / TriLyte
CAS number
Not Available
Chemical Formula
Not Available
InChI Key
Not Available
Not Available
Not Available
Not Available



Used to treat and prevent constipation.

Associated Conditions
Associated Therapies

The pharmacological rationale for the use of polyethylene glycol (PEG) in gastroenterology is its inverse relation between molecular mass and intestinal absorbability, with practically no intestinal absorption at molecular masses exceeding 3000, its lack of intestinal enzymatic degradation or bacterial metabolism, and its water binding capacity.

Mechanism of action

Polyethylene glycol functions as an osmotic agent, causing excess water to be retained in the stool, stimulating a bowel movement.


Usually the high and intermediate molecular weight polyethylene glycol are poorly absorbed after oral administration.

Volume of distribution
Not Available
Protein binding
Not Available

Lack of intestinal enzymatic degradation or bacterial metabolism.

Route of elimination
Not Available
Half life
Not Available
Not Available

Oral LD50 is > 50 gm/Kg in mice, rats, and rabbits. In the event of overdosage, diarrhea would be the expected major event. Massive ingestion, prolonged IV infusion, and prolonged application of low weight PEG products have been associated with metabolic acidosis and renal injury. Hypercalcemia could also occur.

Affected organisms
Not Available
Not Available
Pharmacogenomic Effects/ADRs
Not Available


Drug Interactions
AbemaciclibThe serum concentration of Abemaciclib can be increased when it is combined with Polyethylene glycol.
Abicipar PegolThe therapeutic efficacy of Abicipar Pegol can be decreased when used in combination with Polyethylene glycol.
AcebutololThe serum concentration of Acebutolol can be increased when it is combined with Polyethylene glycol.
AcetaminophenThe serum concentration of Acetaminophen can be increased when it is combined with Polyethylene glycol.
AcetazolamideThe risk or severity of adverse effects can be increased when Acetazolamide is combined with Polyethylene glycol.
AcetyldigoxinThe serum concentration of Acetyldigoxin can be decreased when it is combined with Polyethylene glycol.
Acetylsalicylic acidThe serum concentration of Acetylsalicylic acid can be increased when it is combined with Polyethylene glycol.
AclidiniumThe therapeutic efficacy of Polyethylene glycol can be decreased when used in combination with Aclidinium.
AfatinibThe serum concentration of Afatinib can be increased when it is combined with Polyethylene glycol.
AgmatineThe therapeutic efficacy of Polyethylene glycol can be decreased when used in combination with Agmatine.
Food Interactions
Not Available


General References
  1. Hammer HF, Hammer J, Gasche C: [Polyethylene glycol (Macrogol)--an overview of its use in diagnosis and therapy of gastrointestinal diseases]. Wien Klin Wochenschr. 2000 Jan 28;112(2):53-60. [PubMed:10703152]
  2. Muller-Lissner S: Pharmacokinetic and pharmacodynamic considerations for the current chronic constipation treatments. Expert Opin Drug Metab Toxicol. 2013 Apr;9(4):391-401. doi: 10.1517/17425255.2013.773972. Epub 2013 Feb 21. [PubMed:23425050]
External Links
PubChem Substance
ATC Codes
A06AD15 — MacrogolA06AD65 — Macrogol, combinations
AHFS Codes
  • 56:12.00 — Cathartics and Laxatives
FDA label
Download (539 KB)

Clinical Trials

Clinical Trials
0RecruitingSupportive CareDiverticulitis / Inflammatory Bowel Diseases (IBD) / Neoplasms, Colorectal / Surgical Site Infections1
1CompletedDiagnosticHemorrhage, Gastrointestinal1
1CompletedTreatmentColorectal Cancers1
1CompletedTreatmentGastric Emptying / Healthy Volunteers1
1CompletedTreatmentHealthy Volunteers1
1Not Yet RecruitingTreatmentPharmacokinetics1
1RecruitingTreatmentMenopause / Painful Intercourse / Sexual Dysfunctions1
1RecruitingTreatmentPeripheral Nerve Injury (PNI)1
1, 2CompletedPreventionGeneral Surgery1
1, 2CompletedTreatmentAutism Spectrum Conditions/Disorders / Gastrointestinal Problems1
1, 2CompletedTreatmentColonic Neoplasms1
1, 2CompletedTreatmentHepatitis C Viral Infection1
1, 2CompletedTreatmentHepatitis C Viral Infection / Human Immunodeficiency Virus (HIV)1
1, 2RecruitingTreatmentCrohn's Disease (CD)1
1, 2Unknown StatusTreatmentAnti-Biotic Resistance / Klebsiella Pneumoniae1
2Active Not RecruitingTreatmentCrohn's Disease (CD)1
2CompletedOtherBowel preparation therapy1
2CompletedOtherColon Prep for Colonoscopy1
2CompletedTreatmentChronic Hepatitis C Virus (HCV) Infection3
2CompletedTreatmentChronic Hepatitis C Virus (HCV) Infection / Hepatitis C Viral Infection1
2CompletedTreatmentHepatitis C Infection / Human Immunodeficiency Virus (HIV) Infections1
2CompletedTreatmentHepatitis C Viral Infection2
2CompletedTreatmentHepatitis C Viral Infection / Pain, Chronic1
2CompletedTreatmentHepatitis C Virus (HCV) Infection2
2CompletedTreatmentHepatitis C Virus (HCV) Infection / Liver Cirrhosis, Experimental1
2CompletedTreatmentMalignant Neoplasm of Colon1
2CompletedTreatmentOccasional Constipation1
2RecruitingTreatmentAutism Spectrum Conditions/Disorders / Gastrointestinal Disorders1
2RecruitingTreatmentCrohn's Disease (CD)1
2TerminatedTreatmentChronic Hepatitis C Virus (HCV) Infection1
2WithdrawnTreatmentBowel preparation therapy1
2, 3CompletedTreatmentColonoscopy1
2, 3RecruitingTreatmentClostridium Difficile1
3CompletedNot AvailableBowel Preparation for Colonoscopy1
3CompletedNot AvailableColonoscopy2
3CompletedDiagnosticBowel Preparation for Colonoscopy1
3CompletedDiagnosticBowel Preparation, Efficacy, Tolerability, Safety1
3CompletedDiagnosticBowel preparation therapy1
3CompletedDiagnosticColon Capsule Completion Rates / Colon Capsule Polyp Detection / Quality of Bowel Preparation for the Colon Capsule1
3CompletedOtherBowel Cleansing Efficacy / Unrecognized Condition1
3CompletedSupportive CareColon Adenomas / Colorectal Cancers1
3CompletedSupportive CareColonic Diseases / Diabetes Mellitus (DM)1
3CompletedTreatmentBowel Preparation Prior to Endoscopic, Radiological and Other Examinations as Well as to Surgical Procedures Which Require Empty Bowel1
3CompletedTreatmentBowel preparation therapy2
3CompletedTreatmentChronic Constipation1
3CompletedTreatmentChronic HCV Infection1
3CompletedTreatmentChronic Hepatitis C Virus (HCV) Infection4
3CompletedTreatmentChronic Hepatitis C Virus (HCV) Infection / Hepatitis C Viral Infection1
3CompletedTreatmentColon Cleansing1
3CompletedTreatmentColon Diseases / Colonoscopy Preparation1
3CompletedTreatmentHealthy Volunteers1
3CompletedTreatmentHepatitis C Viral Infection1
3CompletedTreatmentMalignant Neoplasm of Colon1
3CompletedTreatmentOccasional Constipation1
3Not Yet RecruitingTreatmentCritical Illness / Occasional Constipation1
3Not Yet RecruitingTreatmentFunctional Constipation1
3RecruitingDiagnosticDiagnosis Disease1
3RecruitingOtherDigestive System Diseases1
3RecruitingTreatmentBowel Preparation Before Colonoscopy1
3TerminatedTreatmentChronic Hepatitis C Virus (HCV) Infection1
3Unknown StatusDiagnosticColonoscopy1
3WithdrawnTreatmentOccasional Constipation1
4Active Not RecruitingDiagnosticColon Adenomas / Colon Lesion / Colon Polyps1
4Active Not RecruitingOtherColorectal Polyps1
4Active Not RecruitingTreatmentPatients Undergoing Elective Colonoscopy1
4CompletedNot AvailableColonoscopy2
4CompletedBasic ScienceFunctional Constipation / Irritable Bowel Syndrome Characterized by Constipation1
4CompletedDiagnosticColonoscopy Preparation1
4CompletedOtherChronic Constipation1
4CompletedOtherSmall Bowel Diseases1
4CompletedScreeningAdenoma Detection Rate / Bowel Preparation Scale1
4CompletedScreeningColorectal Cancers1
4CompletedTreatmentBowel Preparation for Colonoscopy1
4CompletedTreatmentChronic Constipation1
4CompletedTreatmentChronic Hepatitis C Virus (HCV) Infection1
4CompletedTreatmentColon Cleansing1
4CompletedTreatmentColonoscopy Preparation1
4CompletedTreatmentColorectal Cancers1
4CompletedTreatmentColorectal Cleansing Prior Operation1
4CompletedTreatmentGastrointestinal Diseases1
4CompletedTreatmentIntestinal Cancer1
4CompletedTreatmentMalignant Neoplasm of Colon1
4CompletedTreatmentOccasional Constipation6
4CompletedTreatmentOpioid Induced Constipation (OIC)2
4CompletedTreatmentPreparation for Colonoscopy1
4CompletedTreatmentSubjets Requiring a Colonoscopy1
4Enrolling by InvitationDiagnosticColonoscopy1
4Not Yet RecruitingDiagnosticPolyethylene Glycol / Sodium Phosphate1
4Not Yet RecruitingOtherBowel preparation therapy1
4Not Yet RecruitingOtherCleansing Quality of the Colon1
4RecruitingDiagnosticBowel Preparation Solutions1
4RecruitingDiagnosticBowel preparation therapy1
4RecruitingHealth Services ResearchColorectal Cancers1
4RecruitingOtherCapsule Endoscopy / Gluten Enteropathy / Inflammatory Bowel Diseases (IBD)1
4RecruitingPreventionOccasional Constipation1
4RecruitingPreventionSurgery, Colorectal1
4RecruitingTreatmentChronic Functional Constipation / Functional Constipation1
4RecruitingTreatmentFissure in Ano1
4RecruitingTreatmentHepatic Encephalopathy1
4RecruitingTreatmentOccasional Constipation / Peritoneal dialysis complication1
4TerminatedNot AvailableBowel preparation therapy1
4TerminatedNot AvailableColonoscopy Preparation1
4TerminatedDiagnosticColonoscopy Failure / Poor Bowel Preparation1
4TerminatedSupportive CareMalignancies / Occasional Constipation1
4Unknown StatusNot AvailableClostridium Difficile Colitis1
4Unknown StatusNot AvailableMalignant Neoplasm of Colon / Rectal Carcinoma1
4Unknown StatusHealth Services ResearchColonoscopy1
4Unknown StatusTreatmentBowel Preparation for Colonoscopy1
4Unknown StatusTreatmentOccasional Constipation1
4WithdrawnTreatmentDiurnal Enuresis1
4WithdrawnTreatmentNocturnal Enuresis1
Not AvailableActive Not RecruitingSupportive CareColonoscopy1
Not AvailableCompletedNot AvailableChronic Hepatitis C Virus (HCV) Infection / Genotype 1 / HCV-11
Not AvailableCompletedNot AvailableColonoscopy Preparation2
Not AvailableCompletedNot AvailableEffectiveness of SMS to Fix PC Interval1
Not AvailableCompletedNot AvailableHyponatremias1
Not AvailableCompletedNot AvailableSpinal Cord Injuries (SCI)1
Not AvailableCompletedNot AvailableThe Timing of Bowel Preparation in Outpatient Colonoscopy1
Not AvailableCompletedDiagnosticCancer Colon / Colorectal Polyps / Inflammatory Bowel Diseases (IBD)1
Not AvailableCompletedDiagnosticColonoscopy1
Not AvailableCompletedDiagnosticColorectal Cancer Screening1
Not AvailableCompletedDiagnosticDiabetes Mellitus (DM)1
Not AvailableCompletedHealth Services ResearchAcute Kidney Injury (AKI)1
Not AvailableCompletedPreventionFunctional Disorder of Intestine1
Not AvailableCompletedPreventionPost Procedural Constipation1
Not AvailableCompletedScreeningUlcerative Colitis (UC)1
Not AvailableCompletedSupportive CareBowel Cleansing Quality / Colonoscopy1
Not AvailableCompletedTreatmentHepatic Encephalopathy / Liver Cirrhosis / Portosystemic Encephalopathy / PSE1
Not AvailableCompletedTreatmentInflammatory Bowel Diseases (IBD)1
Not AvailableCompletedTreatmentOccasional Constipation1
Not AvailableCompletedTreatmentUrge Syndrome1
Not AvailableNot Yet RecruitingNot AvailableBowel preparation therapy1
Not AvailableNot Yet RecruitingPreventionBowel preparation therapy / Colonoscopy1
Not AvailableNot Yet RecruitingTreatmentColonoscopy1
Not AvailableRecruitingBasic ScienceMicrobiota1
Not AvailableRecruitingDiagnosticBowel preparation therapy1
Not AvailableRecruitingDiagnosticCTE1
Not AvailableRecruitingDiagnosticColonoscopy1
Not AvailableRecruitingPreventionPostoperative Bowel Movement / Postoperative Passage of Flatus1
Not AvailableRecruitingPreventionRectal Carcinoma1
Not AvailableRecruitingScreeningColonoscopy1
Not AvailableTerminatedTreatmentColonoscopy1
Not AvailableTerminatedTreatmentIncontinence, Fecal1
Not AvailableTerminatedTreatmentOccasional Constipation1
Not AvailableUnknown StatusDiagnosticBowel Preparation for Colonoscopy1
Not AvailableUnknown StatusDiagnosticBowel preparation therapy1
Not AvailableUnknown StatusTreatmentChronic Hepatitis C Virus (HCV) Infection1
Not AvailableUnknown StatusTreatmentHepatitis C Viral Infection1
Not AvailableWithdrawnScreeningPatients Undergoing Screening or Surveillance Colonoscopy1
Not AvailableWithdrawnTreatmentAltered Mental Status / AMS / HE / Hepatic Encephalopathy / Liver Cirrhosis1


Not Available
Not Available
Dosage forms
Solution / dropsOphthalmic
Kit; powder, for solution; tablet, delayed releaseOral
Powder, for solutionOral100 %
Powder, for solutionTopical17 g/1
Powder, for solutionNasogastric
Powder, for solutionNasogastric; Oral
PowderTopical17 g/17g
KitOral1 g/1g
Powder, for solutionOral
Powder, for solutionOral17 g
Powder, for solutionOral1 g
PowderOral17 g/17g
Aerosol, meteredNasal
KitOral; Topical
PowderOral1 g/1g
Powder, for solutionOral1 g/1g
Powder, for solutionOral17 g/1
Powder, for solutionOral60 g/1L
Powder, for solutionOral17 g/1g
Powder, for solutionOral17 g/1d
Powder, for solutionOral17 g/17g
Powder, for suspensionOral100 %
Spray, meteredNasal
Not Available
Patent NumberPediatric ExtensionApprovedExpires (estimated)


Experimental Properties
Not Available
Predicted Properties
Not Available
Predicted ADMET features
Not Available


Mass Spec (NIST)
Not Available
Not Available


Not classified

Drug created on October 29, 2015 12:17 / Updated on March 18, 2019 22:40