The quantity of hormone released by Progestasert per day is?
A. 25 µg
B. 45 µg
C. 65 µg
D. 85 µg
Correct answer : C. 65 µg
Mirena - progesterone releasing IUCDProgesterone releasing IUCD – Mirena
Progestasert is a commonly used IUCD which carries 38 mg of progesterone in silicone oil reservoir.
It releases 65 µg of hormone per day.
It acts by forming a thick plug of mucus at the cervical os which prevents penetration by the sperm.
Ref: Shaw’s Textbook of Gynaecology, 15th edition, p227.
Image credits: Hic et nunc. https://en.wikipedia.org/wiki/File:Mirena_IntraUterine_System.jpg