When Xiao Yu came, the night was already thick.

With a wave of his hand, he stopped the guards as they were about to salute.

In the room, the discussion between Cui Yan and Imperial Physician Gu was still in full swing. In the crowd, she was the most dazzling existence.

Xiao Yu didn't speak, minimizing his sense of existence, and his gaze was always focused on the slender plain white.

The bright candle flame flickered, and in the candlelight, Cui Yan's face was more elegant and clear, like a dark orchid, blooming in front of him, which was the most beautiful picture he had ever seen in his life.

The new plan was quickly proposed, Gu Qingtao wrote down the prescription, handed it to the guard, and ordered him to go down to decoction the medicine.

"Emperor, ...... emperor" Seeing Xiao Yu, Gu Qingtao was stunned for a moment, when did the emperor come?

He hurriedly dressed and prepared to salute.

Xiao Yu said, "No need to be polite. ”

He walked up to Cui Yan and asked softly, "How?" ”

"A prescription has been developed that works, and people have started to make ten doses. However......" Cui Yan's brows furrowed, "If you follow this prescription, there may not be enough medicine in it." ”

Xiao Yu thought for a while, "But Tan Fu?" ”

He had seen the recipe and had some impressions.

Cui Yan nodded.

"Each patient needs to use half a penny of sandalwood, and in the medicine list sent by the emperor, sandalwood is less than two catties."

According to this ratio, even Beijing, the poisoned people in the capital cannot be treated, let alone other places.

Xiao Yu naturally can settle this account.

"Can you reduce the amount?"

Xiao Yu thought that if the quantity was not enough, he could divide one part into more parts to use.

"Half a penny, the result of our trial and error many times, can't be less."

Xiao Yu's brows furrowed, "Is there no other way?" ”

Cui Yan shook her head.

I have tried everything I can, and only this medicine can control the disease and not recur.

Xiao Yu sat down next to Cui Yan, her fingers tapping on the table, releasing a rhythmic percussion sound. If that's the case, it's going to be difficult.

Cui Haoran has been shrewd all his life, and it is impossible for him to make such an obvious mistake. Therefore, these medicines should be completely sufficient.

"Bring all the prescriptions."

"Yes." Gu Qingtao.

Soon, the prescription was delivered to Xiao Yu. There were more than 30 copies in total, and Xiao Yu looked at them carefully one by one. He didn't understand the properties of medicine, but carefully compared the differences of each prescription.

Some have added sandalwood, some have not, the type and dosage of the medicine have also increased, the more you go to the back, the less the situation will change, Xiao Yu knows that this is a sign of perfection.

He read it slowly and carefully, and when he finished reading the last prescription, he took out three of them.

He asked, "These three prescriptions are quite similar, the addition of Tanfu is two money, one money, and half money, why don't those who add two money die, and the patients who add half money and one money all die from the poison of Tanfu?" ”

Cui Yan raised her eyebrows, as far as the results of their research and development were concerned, the amount of death caused by Tan Fu was seven to eight dollars.

The one with Erqian happened to be modified by her, and the effect of the treatment was not very good, but this was the first surviving case. The other two prescriptions were at the front, far apart, and neither she nor the imperial doctors thought of comparing them together.

Cui Yan said, "The previous prescriptions all added ginseng and deer antler velvet, but I thought it would be too expensive to make, so I canceled these two herbs and replaced them with drugs with similar effects." ”