What is the name of the paper used to wrap medicine in ancient times?

Toilet paper is made of straw which is easy to process. Straw grows year after year without cutting down trees, so it will not damage the environment. Mainly used for packing sugar and salt in grocery stores. Pharmacy charges and a lot of paper fire.

Archaeological data prove that paper appeared in the late Western Han Dynasty, but at that time, the paper fiber was rough and the ink performance was poor. It is mainly used to replace cloth for wrapping and padding, and occasionally a note is written on the wrapping paper. For example, papers with the names of drugs were found in Hangquan (probably Juyan) site. Later generations analyzed that those papers were used to wrap drugs, but only the names of drugs were written on the paper for use.