TheraRadar
Data updated: May 26, 2026

NULYTELY (polyethylene glycol 3350)

Osmotic Activity
Gastrointestinal Approved 1991-04-22

NULYTELY is indicated for the treatment of Constipation.

Source: FDA Label • AZURITY
1
Indication
--
Phase 3 Trials
35
Years on Market

Details

Status
Prescription
First Approved
1991-04-22
Routes
ORAL
Dosage Forms
FOR SOLUTION

NULYTELY Approval History

1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
18 FDA actions from 1991 to 2021
May 2021 SUPPL
Label · Labeling
Sep 2013 SUPPL
Label · Labeling
Jan 2010 SUPPL
Label · Labeling

What NULYTELY Treats

1 indications

NULYTELY is approved for 1 conditions since its original approval in 1991. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Constipation
Source: FDA Label

NULYTELY Competitive Set

Pro

Three rings of competition based on shared molecular targets and treated indications.

Indication competitors

1

Same indication, different mechanism — what else might this patient receive?

Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to NULYTELY

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

LINZESS
LINACLOTIDE
1 shared
AbbVie
Shared indications:
Constipation
NULYTELY-FLAVORED
POLYETHYLENE GLYCOL 3350
1 shared
AZURITY
Shared indications:
Constipation
PEG-3350, POTASSIUM CHLORIDE, SODIUM BICARBONATE, SODIUM CHLORIDE
POLYETHYLENE GLYCOL 3350
1 shared
EXTROVIS
Shared indications:
Constipation
📋

Clinical Trial Registry

14 trials
Trial Sponsor ID Phase Status Title
NCT04585542 KBindER results posted HS# 2020-5780 Ph 4 terminated Comparison of Potassium Binders in the ER
NCT06159777 STUDY20231417 Ph 4 completed Pre-operative Polyethylene Glycol 3350 for Minimally Invasive Urogynecologic Surgery
NCT05897086 221616 Ph 2, Ph 3 enrolling by invitation Polyethylene-glycol Assisted Nerve Repair in Phalloplasty
NCT04263896 results posted IRB19-0436 Ph 4 completed Bowel Function After Minimally Invasive Hysterectomy
NCT05805436 202209015 Ph 4 recruiting Preop Laxatives in Robotic Urologic Surgery
NCT06825260 StJosephNewYork Ph 4 recruiting PEG3350 vs Senna After Urogyn Surgery
NCT04210427 results posted 30114 Ph 4 completed Cystic Fibrosis and Gut Dysmotility: The Effect of Polyethylene Glycol (PEG) on Intestinal Transit
NCT02765256 Holiday results posted 823635 Ph 2 completed Fundamental Modification of the Gut Microbiota in the Treatment of Refractory Crohn's Disease
NCT04270019 0644 Ph 1, Ph 2 withdrawn Polyethylene Glycol to Improve Sensation Following Digital Nerve Laceration
NCT03476317 Holiday results posted 17-014343 5K23DK109136-02 Ph 2 completed Pilot Study of Fundamental Modification of the Gut Microbiota in the Treatment of Refractory Crohn's Disease
NCT03060512 results posted D3820L00017 Ph 4 completed To Evaluate Patient Preference of Movantik and Polyethylene Glycol 3350 for Opioid Induced Constipation
NCT02337413 rmc130342ctil Ph 4 withdrawn Urotherapy vs. Urotherapy With Constipation Treatment for Nocturnal Enuresis
NCT02336906 rmc130348ctil Ph 4 withdrawn Urotherapy vs. Urotherapy With Constipation Treatment for Children With Lower Urinary Tract Dysfunction
NCT01063049 results posted 1220100180 Ph 4 completed Gatorade/Miralax With or Without Bisacodyl Versus NuLytely for Colonoscopy Preparation
🔬

Active Pipeline

Pro

Ongoing clinical trials by development phase

Loading...

Key Completed Trials

Pro

Completed studies with published results, ranked by significance

Loading...
📊

Trial Timeline

Full development history with FDA approval milestones

|
Loading...
Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

NULYTELY FDA Label Details

Indications & Usage

FDA Label (PDF)

NULYTELY is indicated for the treatment of Constipation.

Track NULYTELY with TheraRadar Pro

Watchlist alerts, full database access, CSV exports across 14,000+ drugs.

Upgrade to Pro

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.