Drug Interactions

Altavera can interact with several other medications (see Altavera Drug Interactions).

Altavera Overdose Information

Women who take too much Altavera may experience the following symptoms:
  • Nausea and vomiting
  • Vaginal bleeding.
(Click Nordette Overdose for more information.)

What If I Miss a Dose?

Missing doses of Altavera increases the risk of pregnancy. What you should do depends on how many pills you have missed and exactly where you are in your cycle. Refer to the patient information that comes with each pack of Altavera or consult your healthcare provider if you are not sure of what to do (also see Altavera Dosage for more information).

How Does Altavera Work?

Altavera belongs to a group of birth control pills known as combined oral contraceptives, the most common type of birth control pill. It is called a combined oral contraceptive because it contains a combination of two different types of hormones. It contains both an estrogen (ethinyl estradiol) and a progestin (levonorgestrel).
The hormones in Altavera mainly prevent pregnancy by stopping ovulation (the maturation and release of eggs from the ovaries). Altavera also works in two other, minor ways. It changes the cervical mucus (the fluid of the cervix, which is the lower, narrow part of the uterus that is connected to the vagina), making it more difficult for sperm to enter the uterus. Altavera also alters the lining of the uterus (called the endometrium), making it less receptive to an embryo.
Last reviewed by: Kristi Monson, PharmD
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