Interferon alpha 2b refers to recombinant human interferon alpha 2b, which is primarily used to treat viral infections. Since recombinant human interferon alpha 2b effervescent tablets are used by placing them in the vagina, they should not be used during menstrual periods. Recombinant human interferon alpha 2b is mainly used to treat viral infections such as human papillomavirus infection. However, recombinant human interferon alpha 2b effervescent tablets are used by placing them into the vagina. During menstruation, the menstrual blood will flush the medication out of the vagina, and it will not be able to have a therapeutic effect, so do not use recombinant human interferon alpha 2b effervescent tablets during menstruation. The use of recombinant human interferon α2b effervescent tablets should be careful not to use the drug during menstruation, and the use of recombinant human interferon α2b effervescent tablets is prohibited for those who are allergic to recombinant human interferon α2b effervescent tablets. Recombinant human interferon α2b effervescent tablets may cause the organism to experience adverse reactions such as lower abdominal cramping sensation, lumbago, vaginal tingling and so on. If menstruation occurs during the use of recombinant human interferon alpha 2b effervescent tablets, use should be discontinued. If uncomfortable symptoms occur during the use of Recombinant Human Interferon α2b Effervescent Tablets, it is recommended to stop the medication immediately and seek medical attention.