Norplant 1 is expected to be effective up to:: (A) 2 years, (B) 5 years, (C) 7 years, (D) 9 years
Answer is B. Norplant 1 contains 6 silastic capsules of which each contains 36 microgram of levonorgestrel. It is expected to be effective for up to 5 years. Ref: Shaw's Textbook of Gynaecology, 12th Edition, Page 179.