Dydroliv Tablet 10's is used in the treatment of disorders such as dysmenorrhea, endometriosis, infertility, irregular menstrual cycles and premenstrual syndrome which are associated with progesterone deficiency. Dydroliv Tablet 10's may be used in combination with estrogen for hormone replacement therapy or treatment of dysfunctional bleeding or secondary amenorrhea. Infertility is the inability to conceive within 12 months. On the other hand, premenstrual syndrome includes symptoms and signs such as mood swings, tender breasts, food cravings, fatigue, irritability and depression. It occurs in women during certain days of their menstrual cycle, usually just before their period.