How it works: A clinician administers an estrogen/progestin shot monthly. Suppresses ovulation; also thickens the cervical mucus, thereby blocking sperm and preventing fertilization in case ovulation does occur.
Pros: High effectiveness rate; convenience; spontaneity.
Cons: You must get a shot every month; estrogen can reduce milk supply, so if you’re nursing, your clinician will need to determine whether Lunelle is an option for you.
NOTE: Prefilled syringes of Lunelle were temporarily and voluntarily recalled in October 2002 over concerns that the syringes contained insufficient hormone levels. Lunelle that is packaged in vials was not affected by this recall. For more information, visit www.lunelle.com.