Femastin 15 gm is a vaginal cream containing Estriol 0.1%, formulated by Square Pharmaceuticals PLC. It is primarily used in hormone replacement therapy (HRT) to alleviate symptoms associated with estrogen deficiency in postmenopausal women. These symptoms include vaginal dryness, itching, painful intercourse (dyspareunia), and urinary discomfort. Additionally, Femastin is utilized in the treatment of labial adhesions in female children aged 3 months to 3 years.