Lidocaine for Pain Control During Intrauterine Device Insertion

Lidocaine for Pain Control During Intrauterine Device Insertion: A Randomized Clinical Trial

Despite being the most common method of contraception, the use of intrauterine devices (IUDs) is limited by the associated pain during insertion. Many pharmacologic interventions had been studied for their efficacy to reduce IUD insertion pain, of them, lidocaine was found to be superior over NSAIDs or other local anesthetics. This work aims at comparing the safety and efficacy of different lidocaine formulations to optimize selection in reduction of IUD associated pain.

Inclusion Criteria:

1. Multiparous women.
2. Over 18 years of age and eligible for IUD insertion.
3. Application of IUD will be done in postmenstrual period.

Exclusion Criteria:

Null parity. 2. History of failed intrauterine device insertion (uterine perforation, acute expulsion).

3. Copper allergy. 4. Uterine anomaly. 5. Post-partum endometritis or septic abortion in the past three months. 6. Untreated cervicitis/vaginitis, including bacterial vaginosis. 7. Immunosuppression. 8. History of lidocaine ,prilocaine allergy. 9. Analgesic or anxiolytic use within the last 24 hours before the procedure. 10. Wilson's disease. 11. Suspicion of pregnancy. 12. Untreated abnormal uterine bleeding.