Constipation usually occurs in the elderly. Some young people have poor gastrointestinal function and are prone to constipation. Can be improved by complementary food. For example, eat more fat, eat more vegetables to increase fiber and drink more honey water.
Phenolphthalein tablets can also be taken orally according to the instructions. This is a pill that falls slowly, not immediately.
You can buy it at a small local drugstore.