Generic name of Fenmadone is Estradiol Tablets/Estradiol Dydrogesterone Tablets Combination Pack, the lining of the uterus usually grows about 4mm in 4 days of insertion of this medication, depending on the hormone levels in the body. The lining of the uterus usually grows when a woman uses Estradiol Tablets/Estradiol Dydrogesterone Tablets Combination Pack vaginally, and it is possible for the lining of the uterus to grow to about 4mm after 4 days of use of this medication. However, due to individual differences, different sensitivity to the drug and different hormone levels in the body, the exact amount of endometrial growth after using the drug is not specific and certain. Therefore, it is recommended that after using the drug for a certain period of time as prescribed by the doctor, women can go to the hospital for an ultrasound examination to ascertain the exact growth of the uterine lining.