Does Lupron Stop Periods?
Yes, Lupron (leuprolide acetate) stops menstrual periods in most women by suppressing ovarian function and reducing estrogen production. It acts as a GnRH agonist, initially causing a temporary flare-up of hormones before shutting down the pituitary-ovarian axis, leading to amenorrhea (no periods) within 4-8 weeks of starting treatment.[1][2]
How Quickly Does Lupron Stop Periods?
Periods typically stop after 1-2 months. Some women experience spotting or breakthrough bleeding early on due to the initial hormone surge, but full suppression follows.[1][3] In clinical use for endometriosis or uterine fibroids, 80-90% of patients achieve amenorrhea by month 3.[2]
Why Is Lupron Used to Stop Periods?
Doctors prescribe it for conditions like endometriosis, uterine fibroids, or precocious puberty to reduce estrogen-driven symptoms. It creates a temporary menopause-like state, shrinking fibroids or easing pain without surgery.[1][4] It's not a contraceptive but prevents pregnancy by halting ovulation.
What If Periods Don't Stop on Lupron?
About 10-20% of women have persistent spotting or irregular bleeding, often managed by adding progestin (like norethindrone). Underlying issues like fibroids or non-compliance can play a role. Consult a doctor if bleeding continues beyond 2-3 months.[2][3]
How Long Do Periods Stay Stopped After Stopping Lupron?
Periods usually resume 2-6 months after the last dose, depending on injection schedule (monthly or every 3-6 months) and individual factors like age. Fertility returns in most premenopausal women.[1][4] Prolonged use beyond 6 months requires add-back therapy to prevent bone loss.
Lupron Side Effects Beyond Stopped Periods
Common issues include hot flashes, mood changes, headaches, and vaginal dryness from low estrogen. Long-term risks involve bone density loss, so monitoring is standard. It's not recommended indefinitely.[1][2]
Sources:
[1] Lupron official prescribing information (AbbVie)
[2] UpToDate: Leuprolide for endometriosis and fibroids
[3] Mayo Clinic: Leuprolide (Lupron) side effects
[4] American College of Obstetricians and Gynecologists (ACOG) guidelines on GnRH agonists