There are no clinical statistics on how long it takes for rhubarb to pass the bowels, and due to medical conditions and individual differences, no generalizations can be made.
Rhubarb is cold in nature, has the effect of clearing heat and fire, diarrhea and attacking stagnation (treating constipation by passing stools), expelling blood stasis and clearing the channels (removing blood stasis and clearing the channels), cooling the blood and detoxifying the toxin.
It is also used in treating sore throat, swollen and painful eyes, constipation due to stagnation, epistaxis due to blood-heat, dysentery due to damp-heat, sores due to heat-poisoning, burns, jaundice, gonorrhea (increased frequency of urination, dribbling and astringent pain), and stasis of blood.
Note that raw rhubarb has a strong laxative effect, while cooked use is long on clearing heat and removing toxins, with a slower laxative effect.
Raw rhubarb may cause nausea, vomiting, abdominal pain after taking; rhubarb contraindications are not clear; attention to blood deficiency and qi weakness, spleen and stomach cold, women’s menstruation, pregnant women, breastfeeding period of caution.
From the efficacy and role of rhubarb, there is a role in the treatment of constipation, due to differences in the condition of the individual after the use of different effects, raw and cooked rhubarb diarrhea efficacy there are differences, so how long after taking the laxative can not be generalized.
Drugs should be taken under the guidance of a physician, do not self-medication or overdose, to avoid causing adverse consequences.