Osmunda regalis vs Cay Hy Thiem

Side-by-side comparison of medicinal herbs

Herb

Osmunda regalis

Musculoskeletal

Siegesbeckia orientalis

Musculoskeletal

Osmunda regalis

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Cay Hy Thiem

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Description

Stately wetland fern with rhizome used in folk medicine for back pain and injuries.

A Vietnamese herb used for joint pain, hypertension, and as an anti-inflammatory remedy.

Active Compounds

tannins, flavonoids, mucilage

kirenol, siegesbeckin, darutoside, sesquiterpenes

Traditional Uses

back pain, muscle injuries, skin conditions, diarrhea

arthritis, joint pain, hypertension, skin conditions

Modern Uses

anti-inflammatory, topical pain relief

anti-inflammatory, analgesic, antihypertensive

Adult Dosage

Rhizome decoction topically or 3-5g dried frond tea

9-15g dried herb daily

Contraindications

known allergy

pregnancy

Side Effects

mild GI upset

generally well tolerated

Drug Interactions

0 known interactions

Reviewed by: HerbAlly Editorial Team, Medical herbalists and healthcare professionals

Sources: WHO Monographs · NCCIH · PubMed · Commission E