Is it useful to take three yellow tablets for constipation?

Sanhuang tablets should refer to three yellow tablets, the drug is only for constipation caused by the blazing evil of fire and heat, there is no treatment effect for constipation caused by other reasons.
Sanhuang Tablet is a traditional Chinese medicine, which contains rhubarb, berberine hydrochloride and scutellaria baicalensis extract. The medicine can clear heat and detoxification, diarrhea and laxative effect, the treatment is mainly San Jiao heat (chest and abdomen heat evil is heavier) appeared in the gums swelling and pain, heartburn and thirst, urine yellow constipation, eye redness and pain, mouth and nose sores, sore throat, and other manifestations of the swelling and pain.
Constipation caused by the blazing evil of fire-heat can be treated with this medicine. However, there are various causes of constipation, and Sanshuang Tablet should not be used if it is caused by cold evil, stagnation of qi and so on.
Sanshuang Tablet is cold in nature and is prohibited for weak spleen and stomach. It should also be contraindicated in pregnant women, patients with hemolytic anemia and glucose-6-phosphate dehydrogenase deficiency. Side effects of nausea, vomiting, skin rash and medicinal fever may occur. Avoid smoking, alcohol and spicy food. It is not advisable to take tonic Chinese medicine at the same time. If the stools become more frequent and irregular after taking the medicine, the dosage should be reduced as appropriate.
Specific medication should consult a doctor, do not self-medication.