Vitamin K3 does not generally treat constipation.
Vitamin K3 is also called naphthoquinone, in the clinic is mainly used in hypoprothrombinemia, biliary fistula and other causes of bleeding, with a good hemostatic effect, but the vitamin K3 itself does not have the efficacy of treating constipation, there is no relevant experiments to explain the effect of constipation, so vitamin K3 can not treat constipation in general.
Vitamin K3 may cause vomiting, nausea, liver damage, neonatal jaundice, hemolytic anemia of the newborn and other adverse reactions, and it should be noted that vitamin K3 should not be used in combination with phenol sulfonyl ethylamine, aminomethylbenzoic acid and other antiemetic drugs.
The above drugs should be used under the guidance of a physician, not blindly self-medication.