The effects of the Black Poison Heartbreaking Pill were indeed very powerful.
Ever since Yan Xiaoru started taking this life-prolonging medicine, her mental state had stabilized a lot.
Her breathing was no longer weakening, and she could remain lucid.
But this medicine was extremely toxic, using severe poisons to forcibly activate the potential for life, keeping a person in a state of a last flicker of vitality.
The withdrawal symptoms after stopping the medication were very severe and required a great deal of energy and time to fully recover health.
And during the medication period, she would enter a state of suspended animation for two hours each day.
In this state of suspended animation, Yan Xiaoru's breathing would completely halt, leaving only her heart to beat slowly, apparently indistinguishable from death.