<prompt> The quantity of hormone released by Progestase per day is?25 ug45 ug65 ug85 ug  <response>: Progestase is a commonly used IUCD which carries 38 mg of progesterone in silicone oil reservoir. It releases 65 ug of hormone per day. It acts by forming a thick plug of mucus at the cervical os which prevents penetration by the sperm. Ref: Shaws Textbook of Gynaecology, 18th edition, p227. 