In case of dry mouth, dry throat and hoarse voice, many people will choose to drink with pangdahai, but it should be noted that pangdahai can not be drunk for a long time, otherwise adverse reactions may occur.
Clinically, pangdahai can be used for acute pharyngitis, tonsillitis, and constipation caused by fire. However, pangdahai has no effect on vocal nodules, vocal polyps, incomplete closure of vocal cords, excessive stimulation of tobacco and alcohol.
Modern pharmacological studies have also confirmed that pangdahai is cool in nature, which can promote small intestine peristalsis and produce gentle purgative effect. However, long-term and excessive consumption of pangdahai may cause spleen and stomach weakness, leading to diarrhea, reduced diet, chest tightness, emaciation and other symptoms. If patients with diarrhea take pangdahai, they will get worse.
In addition, pangdahai also has a certain role in lowering blood pressure. People with low blood pressure may have more problems if they take it for a long time.
According to the Chinese Pharmacopoeia (2015 Edition), the usage and dosage of pangdahai is: 2-3 pieces per day, soaking in boiling water or decocting. It is generally recommended to use it discontinuously for more than 7 days. In our clinical practice and related literature, we can see that pangdahai has many adverse reactions. If you take it for a long time, it will cause unnecessary burden to the kidney and liver.
In a word, pangdahai is a pure traditional Chinese medicine. It can't be taken as a health food. Under the guidance of a doctor, we should 'prescribe the right medicine to the case and take it as soon as it works'.