Woodblock printing was already a widely used technique in the Tang Dynasty. However, this kind of printing tech was expensive and time-consuming. Until the Song Dynasty (960-1279), a man named Bi Sheng (990â1051) invented movable type printing, making it quicker and easier.
Asafoetida has been used as a medicinal herb for many decades, with some people choosing to make a tea from it in order to drink it plain. Despite its pungent aroma, it is known to alleviate stomach ailments, cold symptoms, anxiety issues, chronic fatigue, yeast infections, and painful gas and flatulence.
Levetiracetam is used to treat particular types of seizures in people who have epilepsy. It is typically used along with other medications. This medicine is classified as an anti convulsant and it works by decreasing abnormal excitement in the brain. It is commonly sold as Keppra. Levetiracetam is a white to off-white crystalline powder with a light odor and a bitter taste.