Polypodium vulgare vs Alpinia calcarata

Side-by-side comparison of medicinal herbs

Herb

Polypodium vulgare

Respiratory

Respiratory

Polypodium vulgare

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Alpinia calcarata

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Description

European fern used in folk medicine as expectorant and mild laxative; rhizome contains ecdysones.

Sri Lankan Alpinia used in Siddha and Ayurveda for respiratory conditions and joint pain.

Active Compounds

ecdysones, saponins, mucilage, tannins, flavonoids

terpinen-4-ol, 1,8-cineole, flavonoids, essential oils

Traditional Uses

cough, constipation, liver conditions, arthritis

cough, bronchitis, joint pain, digestive complaints

Modern Uses

expectorant, mild laxative, anti-inflammatory

expectorant, anti-inflammatory, digestive stimulant

Adult Dosage

3-5g dried rhizome tea 2x/day

3-5g rhizome decoction 2x/day

Contraindications

pregnancy, diarrhea

pregnancy (large doses), allergy to Zingiberaceae

Side Effects

GI upset, laxative effect

GI upset, skin sensitization

Drug Interactions

0 known interactions

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

Sources: WHO Monographs · NCCIH · PubMed · Commission E