Pills and elixirs are two traditional dosage forms. Generally pills are generally slow to be absorbed and have a long lasting effect. Dan dosage is generally effective or the herbs are expensive. Pills are made by grinding medicines into powder and adding adhesive to form a round solid medicine. Pills are not absorbed as well as tonics, but they have a long-lasting effect and are suitable for chronic, debilitating diseases. It can also slow down the action of drugs that are strong in nature, such as Daidang Pills. And there are drugs that do not go into decoctions that can also be made into pills, such as Zhu Sha and other drugs. Dan dosage is not a fixed dosage form, and the dosage for internal use may be either pills or bulk. Generally, those with outstanding efficacy and expensive herbs will be named Dan, such as Zhi Bao Dan, Zi Xue Dan, Xiao Liu Luo Dan and so on. Moreover, Dan can also be used externally, mostly made of ores fired at high temperature. It is used for surgical carbuncles (which are poisonous sores that occur as acute suppurative diseases on the body surface, limbs, and internal organs), gall tumors (equivalent to thyroid tumors), and other diseases.