What Annovera Treats
Annovera is a hormonal vaginal ring used to prevent pregnancy. It releases a combination of segesterone acetate (a progestin) and ethinyl estradiol (an estrogen) over 13 cycles, each lasting 28 days: 21 days with the ring inserted and 7 days without.[1]
How Annovera Works
The ring delivers steady hormone levels to suppress ovulation, thicken cervical mucus to block sperm, and thin the uterine lining to prevent implantation. Users self-insert and remove it, replacing it with a new ring after one year.[1]
Who Can Use Annovera
It's approved for women of childbearing potential seeking reversible contraception. Not suitable for those with blood clots, certain cancers, liver disease, uncontrolled hypertension, or who smoke over age 35.[1]
How Long Does Annovera Last
One ring covers 13 cycles (one year). Reuse the same ring for all 13 cycles, then get a new one. Protection starts after 7 days of correct use in the first cycle.[1]
Annovera vs Other Birth Control Options
Unlike daily pills, Annovera requires no daily action—just monthly checks. Compared to NuvaRing (another vaginal ring), Annovera lasts a full year per ring and uses segesterone acetate instead of etonogestrel. It's more convenient than IUDs for those avoiding procedures but less "set it and forget it."[1][2]
Common Side Effects Patients Report
Headaches, vaginal discharge, nausea, and breast tenderness occur initially. Serious risks include blood clots, stroke, or heart attack, especially in smokers or those over 35. Ring expulsion or slippage affects about 4% of users.[1]
Cost and Availability
Annovera costs $200–$300 per ring (one-year supply) without insurance; copays drop to $0–$50 with coverage. Available by prescription at pharmacies.[3]
[1] https://www.annovera.com
[2] https://www.drugs.com/annovera.html
[3] https://www.goodrx.com/annovera