Herb in Thai notifiable formulas

Ispaghula Seed

เทียนเกล็ดหอย · Thian Klet Hoi

Plantago ovata Forssk.

Family
Plantaginaceae
Part used
seed
Crude drug
Plantaginis Ovatae Semen
Other names
Blond Psyllium Seed, Indian Plantago Seed, Pale Psyllium Seed, Spogel Seed
In the announcement
Used in 4 notifiable formulas
Ispaghula Seed, dried ripe seed
Photo: Bastique (Cary Bass) · Wikimedia Commons · CC BY-SA 3.0 · resized
Thai Herbal Pharmacopoeia (THP)

Constituents and quality criteria of Ispaghula Seed

Summarised from the Ispaghula Seed monograph of the Thai Herbal Pharmacopoeia, Department of Medical Sciences, the standard used to test the dried ripe seed.

The pharmacopoeia sets no minimum marker content for this herb. Use the raw material quality criteria below for acceptance testing.

Constituents

Ispaghula Seed contains mucilage consisting mainly of arabinoxylans. It also contains aucubin, triterpenes, sterols, fixed oil, etc.

Raw material quality criteria

Foreign matterNot more than 3.0% w/w
Total ashNot less than 9
Swelling indexNot less than 9
Acid-insoluble ashNot more than 1.0% w/w

Storage: Ispaghula Seed shall be kept in well-closed containers, protected from light, and stored in a dry place.

Source: Thai Herbal Pharmacopoeia, Department of Medical Sciences (online edition, accessed 21 October 2026)Read the full THP monograph
Development potential

Develop Ispaghula Seed into a product with the TIBD group

In notifiable formulas4 formulas1 as a single-herb formula
THP raw-material criteria4 testsfor acceptance testing before production
Marker with a minimum contentNot setquality is checked with the raw-material criteria

Three ways forward 1Notify a listed formula2Adapt it through detailed notification3Develop a Category B herbal medicine or Category C health productSee the development pathway