The statement “how harmful is levonorgestrel tablets” is not reasonable, levonorgestrel tablets is a progestin drug, some patients can experience mild nausea, vomiting, breast tenderness, headache and other adverse reactions after taking.
Levonorgestrel tablets are a progestogen-like drug that can be used for emergency contraception for women, i.e., when there is no protection or when other contraceptive methods are used in error. Proper use can avoid unwanted pregnancy and more harm to women.
However, there may be adverse reactions to taking levonorgestrel tablets, including mild nausea and vomiting, symptoms such as breast tenderness and headache, and early or delayed menstruation in the month in which the medication is taken.
Taking levonorgestrel tablets is not recommended as a regular means of contraception, and condoms and other forms of contraception should be used instead.