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Two medicines, side by side

Polyethylene glycol 3350 vs psyllium husk

Polyethylene glycol 3350 and psyllium husk are both labeled for constipation.

Check it at the source: the polyethylene glycol 3350 FDA label on DailyMed (effective May 4, 2026); the psyllium husk FDA label on DailyMed (effective September 8, 2026).

Highlights of the polyethylene glycol 3350 record

Polyethylene glycol 3350 (Miralax) · label of May 4, 2026

Used for

From the label: indications

relieves occasional constipation (irregularity) generally produces a bowel movement in 1 to 3 days

On the market

Earliest approval on file
February 18, 1999
Generic labelers
69 labelers
Pharmacy cost
$0.0286 per gram

Supply and safety

Shortage
No current entry
Recalls
4

Highlights of the psyllium husk record

Psyllium husk · label of September 8, 2026

Used for

From the label: indications

• effective in treating occasional constipation and restoring regularity

On the market

Earliest approval on file
n/a
Generic labelers
none listed
Pharmacy cost
Not in the survey

Supply and safety

Shortage
No current entry
Recalls
0

Source: FDA drug labels via openFDA (Polyethylene glycol 3350 label of May 4, 2026, Psyllium husk label of September 8, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do polyethylene glycol 3350 and psyllium husk differ on the record?

Generics: polyethylene glycol 3350 since 2004; psyllium husk none approved (Drugs@FDA).

Polyethylene glycol 3350Psyllium husk
Labeled forConstipationConstipation
Pharmacologic classOsmotic Laxativen/a
How it works (label)n/an/a
Half-life (label)n/an/a
Earliest approval on file (Drugs@FDA)February 18, 1999n/a
First generic approvedJuly 2, 2004none
Generic labelers (NDC)69 labelersnone listed
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0286 per gram (Polyethylene glycol 3350 powd)n/a
12-month price change-1%n/a
Boxed warningNoNo
Shortage nowNo current entryNo current entry
Recalls recorded40
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)105,2549,821
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

Alternatives to polyethylene glycol 3350
every medicine labeled for the same conditions