Will taking gynecological drugs affect menstruation?

The use of gynecological drugs may affect the menstrual cycle. The specific effects vary depending on the type of drug, dosage and individual differences. Common drugs that may affect menstruation mainly include hormonal drugs, antibiotics, hemostatic drugs, Chinese patent medicines and immune modulators.

1. Hormone drugs

Estrogen or progesterone drugs, such as ethinyl estradiol, cyproterone tablets, drospirenone and ethinyl estradiol tablets, can directly interfere with the endocrine axis, leading to early or late menstruation or changes in menstrual flow. Long-term use may cause amenorrhea, and it will take 3-6 months to resume the cycle after stopping the drug.

2. Antibiotics

Broad-spectrum antibiotics such as metronidazole tablets and levofloxacin hydrochloride capsules may inhibit intestinal flora, indirectly affect estrogen metabolism, and cause temporary menstrual disorders. Usually, it can be adjusted on its own within 1-2 menstrual cycles after stopping the drug.

3. Hemostatic drugs

Antifibrinolytic drugs such as tranexamic acid tablets reduce menstrual flow by inhibiting endometrial shedding. Excessive use may lead to shortened menstrual periods or spotting. The course of treatment must be strictly followed as prescribed by the doctor.

4. Chinese patent medicines

Chinese patent medicines that promote blood circulation and remove blood stasis, such as Fuke Qianjin Tablets and Jingangteng Capsules, may promote uterine contraction and may cause increased menstrual flow or worsening dysmenorrhea during the initial period of use. It is recommended to discontinue use 3 days before menstruation.

5. Immunomodulators

Topical medications such as interferon suppositories may trigger non-specific inflammatory reactions, leading to intermenstrual bleeding or cycle disorders, which are more common in patients who use them continuously for more than 2 weeks.

It is recommended to record changes in the menstrual cycle during medication to avoid adjusting the dosage on your own. If persistent amenorrhea, heavy bleeding or severe abdominal pain occurs, the medication must be discontinued and medical attention should be sought immediately. Maintaining a regular schedule and supplementing with iron and B vitamins in an appropriate amount can help restore menstruation. Avoid strenuous exercise and cold or cold foods during menstruation.