The two butchers were not evil villains; it was unlikely they would misuse the anesthetic to harm people. Chu Qingzhi said, "I can sell it, but it's somewhat expensive."
The butcher really wanted it, "Please tell me."
Chu Qingzhi explained, "The anesthetic can only be used with a hollow needle. If you want to buy it, you need to purchase both items together. I'll give you a discount, but it will still cost three taels of silver for a set, and that's for a small bottle of the anesthetic."
A small bottle amounted to about one or two taels in volume, which was quite little.
The butcher pondered for a moment, then asked, "How many pigs can one bottle of anesthetic knock out?"
Chu Qingzhi conservatively estimated, "A hundred pigs shouldn't be a problem."