USMLE Step 2 CK Lecture Notes 2019: Obstetrics/Gynecology (Kaplan Test Prep)

(Kiana) #1

LONG-ACTING REVERSIBLE


CONTRACEPTION


Long-acting reversible contraceptives (LARCs) provide effective contraception
for an extended period without requiring user action. Methods used
include intramuscular injection (e.g. DMPA), IUD (Mirena, Paragard), and
subdermal contraceptive implant (Nexplanon).


Advantages: considered  the most    effective   reversible  method  of
contraception because patient compliance is not required; "typical use" failure
rates (<1% per year) are about the same as "perfect use" failure rates (similar
to sterilization procedures); long-lasting, convenient, well-liked by users, and
very cost-effective
Disadvantages: higher up-front cost ($800−900 in United States) as
compared with other methods such as oral contraceptive pills, the patch, and
vaginal ring
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