Bencao Gangmu Reference Library
大车前草 / 车前草 / 车轮菜 / 虾蟆衣 / 蛤蟆草 — Plantago major L.
Pinyin: Dàchēqiáncǎo / Chēqiáncǎo · Malay: Ekor Anjing / Daun Sejambak / Plantain · Family: Plantaginaceae (车前科)
Energetics
Cold to Cool (微寒 / 凉)
Flavor
Sweet, bland, slightly bitter (甘、淡、微苦)
Meridians
Liver (肝), Kidney (肾), Urinary Bladder (膀胱), Lung (肺), Small Intestine (小肠)
Traditional Edict
Broadleaf Plantain (Ekor Anjing / Da Che Qian Cao). Parallel-veined broad leaves and rat-tail flower spikes. Drains damp-heat to dissolve and flush calcium oxalate kidney stones (Batu Karang), clears eye redness and cataracts, heals burns.
Cautions & Contraindications
- Maintain high hydration (>2.5 L water daily) when treating urinary calculi. Contraindicated as monotherapy in complete urinary tract obstruction. Contraindicated in cold watery diarrhea without damp-heat.
Clinical Applications
- Calcium oxalate nephrolithiasis/urolithiasis (stone matrix dissolution and flushing), acute bacterial cystitis with burning dysuria, conjunctivitis and corneal pterygium, and acute bronchitis with yellow phlegm.
Quality Markers
Mechanism & Phytochemistry
1. Potassium salts and plantamajoside elevate urinary pH (>6.8) and urinary citrate, inhibiting calcium oxalate monohydrate (COM) crystallization. 2. Aucubin stimulates tissue re-epithelialization and downregulates NF-kB. 3. Diuretic flush.
Preparation & Dosage
THE SOVEREIGN BROADLEAF PLANTAIN STONE-EXPELLING DECOCTION: 30 to 50 g dried herb boiled with Desmodium styracifolium and Orthosiphon in 1.5 L water for 30 min. Fresh expressed eye wash for conjunctivitis. Topical burn poultice: 50 g fresh leaves.
Appended Prescriptions
- 1. Classical Eight-Herb Strangury Powder (Ba Zheng San) with Dianthus superbus (Qu Mai). 2. Liver-Clearing Vision-Brightening Tea with Chrysanthemum morifolium (Ju Hua).
Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only
