Osmolax

Osmotic Laxative·Gastrointestinal - Laxatives

Treatment of chronic constipation

OSMOTICOsmoLaxTasteless, odorless white po…UNSCHEDULEDTGA

Max Dose

3-4 scoops/day

Onset

1-2 Days

Electrolytes

NONE

Taste

TASTELESS

Rapid Summary

Overview

Macrogol 3350 (PEG) WITHOUT added electrolytes. Acts exactly like Movicol, but is completely tasteless and can be mixed into any hot or cold drink.

Maximum Dose

Max 3-4 scoops/day (Adults).

Clinical Focus

Provides the same excellent laxative effect as Movicol, massively improving patient compliance because it doesn't taste like salty lemon water.

Bottom Line

Osmolax is an unflavoured macrogol osmotic laxative for constipation, but provides no electrolyte replacement unlike Movicol and requires adequate fluid intake.

Formulation & Access

Brand Names

OsmoLax

Oral Routes

Tasteless, odorless white powder (Macrogol 3350 pure).

Prescribing & PBS

Not Scheduled; healthdirect/PBS data verify PBS availability for listed Osmolax packs.

Indications & Use

Primary

TGA

Treatment of chronic constipation.

Clinical Place

Highly favored in pediatrics or for picky adult/dementia patients who refuse to drink salty Movicol.

Quick reference

Class & Role

Osmotic Laxative — Macrogol 3350 (PEG) WITHOUT added electrolytes.

Route / Formulation

Tasteless, odorless white powder (Macrogol 3350 pure). (OsmoLax)

Usual Dose & Max

PO 1-2 scoops (17-34g) OD. Mix with 200 mL of any hot/cold liquid (water, juice, coffee). Max 3-4 scoops/day (Adults).

Key Indication Doses

Constipation (Adults): PO 1-2 scoops (17-34g) OD. Mix with 200 mL of any hot/cold liquid (water, juice, coffee). Constipation (Paediatrics): Strictly weight-based (e.g., 1 scoop daily for children > 2 years).

Best Uses

Osmolax is an unflavoured macrogol osmotic laxative for constipation, but provides no electrolyte replacement unlike Movicol and requires adequate fluid intake.

Avoid / Cautions

Bowel obstruction, perforated gut. Pregnancy Category B1.

Key Risks

Gastrointestinal: Bloating, flatulence, nausea. Metabolic: Because it lacks the protective electrolytes of Movicol, massive doses *could* theoretically cause minor electrolyte shifts, but this is clinically rare at standard doses.

Key Interactions

May reduce transit time of other drugs.

Monitoring

Monitor bowel actions and fluid tolerance. Each level scoop is mixed with about 240 mL water; use caution with fluid restriction, dysphagia, or thickened-fluid requirements.

Clinical Pearl

For dementia patients who spit out Movicol, stirring a scoop of Osmolax into their morning cup of tea is completely undetectable and guarantees they get their laxative.

Access

OsmoLaxTasteless, odorless white po…

Brand: OsmoLax
Formulation: Tasteless, odorless white powder (Macrogol 3350 pure)

Osmolax

Osmotic Laxative·Gastrointestinal - Laxatives

Treatment of chronic constipation

OSMOTICOsmoLaxTasteless, odorless white po…UNSCHEDULEDTGA

Max Dose

3-4 scoops/day

Onset

1-2 Days

Electrolytes

NONE

Taste

TASTELESS

Rapid Summary

Overview

Macrogol 3350 (PEG) WITHOUT added electrolytes. Acts exactly like Movicol, but is completely tasteless and can be mixed into any hot or cold drink.

Maximum Dose

Max 3-4 scoops/day (Adults).

Clinical Focus

Provides the same excellent laxative effect as Movicol, massively improving patient compliance because it doesn't taste like salty lemon water.

Bottom Line

Osmolax is an unflavoured macrogol osmotic laxative for constipation, but provides no electrolyte replacement unlike Movicol and requires adequate fluid intake.

Formulation & Access

Brand Names

OsmoLax

Oral Routes

Tasteless, odorless white powder (Macrogol 3350 pure).

Prescribing & PBS

Not Scheduled; healthdirect/PBS data verify PBS availability for listed Osmolax packs.

Indications & Use

Primary

TGA

Treatment of chronic constipation.

Clinical Place

Highly favored in pediatrics or for picky adult/dementia patients who refuse to drink salty Movicol.

Quick reference

Class & Role

Osmotic Laxative — Macrogol 3350 (PEG) WITHOUT added electrolytes.

Route / Formulation

Tasteless, odorless white powder (Macrogol 3350 pure). (OsmoLax)

Usual Dose & Max

PO 1-2 scoops (17-34g) OD. Mix with 200 mL of any hot/cold liquid (water, juice, coffee). Max 3-4 scoops/day (Adults).

Key Indication Doses

Best Uses

Osmolax is an unflavoured macrogol osmotic laxative for constipation, but provides no electrolyte replacement unlike Movicol and requires adequate fluid intake.

Avoid / Cautions

Bowel obstruction, perforated gut. Pregnancy Category B1.

Key Risks

Key Interactions

May reduce transit time of other drugs.

Monitoring

Monitor bowel actions and fluid tolerance. Each level scoop is mixed with about 240 mL water; use caution with fluid restriction, dysphagia, or thickened-fluid requirements.

Clinical Pearl

For dementia patients who spit out Movicol, stirring a scoop of Osmolax into their morning cup of tea is completely undetectable and guarantees they get their laxative.

Access

OsmoLaxTasteless, odorless white po…

Brand: OsmoLax
Formulation: Tasteless, odorless white powder (Macrogol 3350 pure)