One year study of Implanon on the adverse events and discontinuation

• Main Authors: Chaovisitsaree S., Piyamongkol W., Pongsatha S., Morakote N., Noium S., Soonthornlimsiri N.
• Format: Review
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-20344390013&partnerID=40&md5=1f0559c5740e20694800c4faea9152e3; http://www.ncbi.nlm.nih.gov/pubmed/15962637; http://cmuir.cmu.ac.th/handle/6653943832/1941
• Institution: Chiang Mai University

Objective: To determine adverse events and discontinuation of Implanon in healthy Thai women between 16 and 45 years of age. Design: Prospective descriptive study. Setting: Family Planning Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University. Subjects: Ninety-two female volunteers with eligible criteria, no contraindication for hormonal contraceptive and wished to have long term contraception were recruited. Main outcome measures: Determination of adverse events was done three months after Implanon insertion. Discontinuation of Implanon use was reviewed during the study period of one year. Results: Amenorrhea (40.2%) and infrequent bleeding (39.1%) were the most menstrual adverse events. While most non-menstrual adverse events were headache/dizziness (27.2%) and lower abdominal pain (23.9%). Severe non-menstrual side effect was rare (1-2%). Seven subjects (7.6%) discontinued using Implanon during the one year period of study. Conclusion: Implanon demonstrated a high continue rate at the first year of insertion. It produced similar adverse events like other progestin-only contraceptives. Counseling before insertion is important for increased client satisfaction and a higher continuation rate.