This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Contraception, Subject name: Gynaecology & Obstetrics
Contraception of choice in menorrhagia : 
Select and explain. 
A. Modified IUD, B. Cu-T, C. LNG IUD, D. Condom
C: LNG IUD
Answer: C: LNG IUD 
Explanation: Mirena IUCD contains 52 mg levonorgestrel, because its action is local resulting in endometrial suppression, it takes 2 to 3 months to reduce menorrhagia and the effect lasts for 5 years. Reference: Shaw's Textbook of gynaecology 16th edition page no 343