What are the effects and functions of coltsfoot flowers

In our daily life, we mainly use coltsfoot as a medicinal herb to treat respiratory infections or abnormal blood circulation, and many friends have not learned about coltsfoot, so you cannot use coltsfoot to treat diseases by yourself. If you usually feel faint, cough, or have gastrointestinal abnormalities, you can use coltsfoot to treat the disease, and the effect is quite good.

1. It has an antitussive, expectorant and slightly antiasthmatic effect on the respiratory system. In some areas of Eastern Europe, preparations of coltsfoot flowers or leaves are also used to treat tracheitis, pharyngitis and bronchial asthma. The cough-inducing method of injecting 1% iodine solution into the right pleural cavity of cats and taking coltsfoot flower decoction orally had a significant antitussive effect, but it was not long-lasting. Experiments have shown that a small amount of coltsfoot ether extract can slightly dilate the bronchi, but a large dose will cause contraction; for spasms caused by histamine, its antispasmodic effect is not as effective as theophylline. Some people believe that the nitrates it contains are the cough suppressant ingredients.

2. Effect on the circulatory system: Intravenous injection of alcohol extract in anesthetized cats has the effect of first lowering and then raising the blood pressure. According to the component separation test, the soluble part of coltsfoot flower alcohol-soluble ether has a pressor effect, while the insoluble part of coltsfoot flower alcohol-soluble ether has a hypotensive effect. The principle of its pressor effect is preliminarily believed to be due to multiple effects such as excitement of sympathetic ganglia, sympathomimetic effect, central excitation effect and direct excitement of vascular smooth muscle.

3. Other effects: Ether extracts have inhibitory effects on gastrointestinal smooth muscle in vivo or in vitro. For the isolated uterus, alcohol extract is excitatory when used in small amounts, but is first excitatory and then inhibitory, or is inhibitory from the beginning when used in large amounts. The ether extract and distillate of coltsfoot leaves also have an antispasmodic effect on the isolated small intestine of rabbits. Intraperitoneal injection of coltsfoot ether extract into mice, intravenous injection into guinea pigs and rabbits, and injection into the lymphatic cavity of toads and frogs can cause convulsions and respiratory arrest.

Through the analysis of the effects and functions of coltsfoot in this article, I believe you all know that coltsfoot can treat vascular and respiratory diseases. In our daily life, we mainly consume coltsfoot flowers together with other medicinal herbs. I hope everyone can take coltsfoot flowers according to the doctor's advice.