Overview of the efficacy and functions of Pinellia ternata

Pinellia ternata is a phlegm-reducing and cough-relieving medicine commonly used in clinical medicine.Drain dampness and resolve phlegm, lower qi and stop vomiting, eliminate pimples and dissipate stagnationThree core functions. It is mainly suitable for symptoms such as cough with excessive phlegm, chest tightness and gas reversal caused by phlegm-dampness stagnation, as well as nausea and vomiting caused by stomach gas reversal. Modern research shows that Pinellia ternata also has certain sedative and anti-ulcer effects, but it should be noted that its raw product is toxic and needs to be processed before use. The following will start from traditional applications, modern research and precautions, and systematically analyze its value and reasonable usage.

Analysis of traditional functions: the "main force" for drying dampness and resolving phlegm

Pinellia ternata is classified asSpleen and Stomach MeridianDrugs, especially good at resolvingDamp phlegm, cold phlegm. Classic prescriptions such as Erchen Decoction and Banxia Houpu Decoction are based on it and are used to treat coughs, white and sticky phlegm, and thick and greasy tongue coating caused by phlegm-dampness stagnation. Its pungent and warm properties can warm up cold phlegm, and the effect is more significant when combined with drugs such as tangerine peel and poria cocos. Li Shizhen recorded in "Compendium of Materia Medica" that it "maintains typhoid fever, cold and heat, hardness of the heart, chest distension and cough", highlighting its two-way regulatory effect on respiratory and digestive tract symptoms.

Expanding modern applications: from antivomiting to neuromodulation

Modern pharmacological research has found that the content of Pinellia ternataAlkaloids(such as choline, ephedrine) have the effect of inhibiting central nervous system excitation and can relieve vomiting during pregnancy or vomiting after chemotherapy. Animal experiments show that its extract can reduce gastric acid secretion and have a protective effect on gastric mucosa (see table). In addition, some studies suggest that itChronic pharyngitis, thyroid nodulesIt has auxiliary treatment effect for other diseases, but more clinical data is needed to support it.

Precautions and contraindications for use

Pinellia must be strictly followedConcoction specifications(such as ginger alum), raw use may cause oral mucosal irritation or even poisoning. It should not be used by patients with yin deficiency, dryness, cough, and hemoptysis. Pregnant women should use it under the guidance of a physician. The normal dosage is 3-9 grams. Excessive dosage may cause adverse reactions such as numbness of the tongue and hoarse voice. The "Chinese Pharmacopoeia" clearly states that it should not be used together with aconitum medicinal materials such as Aconite and Aconite to avoid drug interactions.

Summary: Reasonable application can be effective

Pinellia ternata is an important medicine for resolving phlegm and relieving vomiting. Its value is reflected inTreat symptomsandStandard usein. The traditional efficacy has been partially verified by modern research, but attention should be paid to its "strong medicinal properties". It is recommended that patients use it under the guidance of TCM syndrome differentiation and avoid abuse on their own. Only by fully understanding its “cans” and “cannots” can we unleash the true value of this thousand-year-old medicinal material.

Quote sources:

1. "Chinese Pharmacopoeia" 2020 Edition (Part 1)
2. Li Shizhen's "Compendium of Materia Medica"
3. "Chinese Materia Medica" Shanghai Science and Technology Press