Description

Psyllium hydrophilic mucilloid is derived from the ripe seeds of varieties of Plantago species. The seed coating has a high hemicellulose mucillage content, which swells in the presence of water, making it a major component of bulk-forming laxatives.

Usage

Psyllium hydrophilic mucilloid is used in horses that have a problem with constipation, and some veterinarians recommend it for treatment of sand colic. By swelling as it absorbs water, psyllium increases bulk in the intestine and is believed to induce peristalsis and decrease intestinal transit time. In treatment of sand colic, psyllium is thought to help collect sand and lubricate its passage through the gastrointestinal tract.

Dosage and Administration

Precautions

Bulk-forming laxatives should not be used when prompt intestinal evacuation is required, in cases of fecal impaction, or if an intestinal obstruction is present.

Interactions

Because the potential exists for bulk-forming laxatives to bind digoxin, salicylates, and nitrofurantoin, it is recommended that bulk-forming laxatives be administered at least 3 hours apart from other drugs.

Overdose

If administered with sufficient liquid, psyllium overdose should cause only an increased amount of soft or loose stools.