Regumen is an oral contraceptive tablet manufactured by Renata Limited, combining two active ingredients: Ethinylestradiol (0.05 mg), a synthetic estrogen, and Lynestrenol (2.5 mg), a synthetic progestogen. This combination effectively prevents ovulation, alters cervical mucus to impede sperm entry, and modifies the uterine lining to prevent implantation, thereby offering reliable contraception