On this page · 8 sections

Camrese Lo (91 Day) (extended-cycle)

Generic name: ethinyl estradiol and levonorgestrel (extended-cycle)

Brand names: Amethia (91 Day), Ashlyna (91 Day), Camrese (91 Day), Camrese Lo (91 Day), Daysee (91 Day), Iclevia (91 Day), Introvale (91 Day), Jaimiess (91 Day), Jolessa (91 Day), LoJaimiess (91 Day), Quartette (91 Day), Rivelsa (91 Day), Setlakin (91 Day), Simpesse (91 Day), Amethia Lo extended-cycle, Quasense extended-cycle

Last updated November 1, 2026 0 views
Share

What is Camrese Lo (91 Day) extended-cycle?

Camrese Lo (91 Day) is a combination medication that has female hormones that stop ovulation (the release of an egg from an ovary). This medicine also changes your cervical mucus and uterine lining, making it more difficult for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.

Camrese Lo (91 Day) is used as birth control to prevent pregnancy.

Camrese Lo (91 Day) may also be used for other reasons not mentioned in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I take ethinyl estradiol and levonorgestrel extended-cycle?

Follow all instructions on your prescription label and read any medication guides or instruction sheets. Use the medicine exactly as directed.

Take your first pill on the first day of your period or on the first Sunday after your period starts. You may need to use back-up birth control, like condoms or a spermicide, when you first start this medicine. Follow your doctor's instructions.

Take one pill every day, no more than 24 hours apart. When the pills run out, start a new pack the next day. You may get pregnant if you do not take one pill daily. Get your prescription refilled before you run out of pills completely.

You will not have a menstrual period every month while taking an extended-cycle birth control pill. Instead, your period should happen every 12 weeks.

The 91-day birth control pack contains three trays with cards that hold 84 "active" pills and seven "reminder" pills. You must use the pills in a specific order to maintain a regular cycle. Trays 1 and 2 each hold 28 pills. Tray 3 holds 35 pills, which includes the 7 reminder pills. Your period should start while using these reminder pills.

You may experience breakthrough bleeding, especially during the first 3 months. Inform your doctor if this bleeding continues or is very heavy.

Use back-up birth control if you have severe vomiting or diarrhea.

If you need major surgery or will be on long-term bed rest, you may need to stop using this medicine for a short time. Any doctor or surgeon treating you should know that you are using birth control pills.

While taking birth control pills, you will need to visit your doctor regularly.

Store this medication at room temperature, away from moisture and heat.

This section was rewritten for readability and reviewed for meaning.

Warnings

Do not use birth control pills if you are pregnant or if you have recently had a baby.

You should not use birth control pills if you have: uncontrolled high blood pressure, heart disease, coronary artery disease, circulation problems (especially with diabetes), undiagnosed vaginal bleeding, liver disease or liver cancer, severe migraine headaches, if you also take certain hepatitis C medication, if you will have major surgery, if you smoke and are over 35, or if you have ever had a heart attack, a stroke, a blood clot, jaundice caused by pregnancy or birth control pills, or cancer of the breast, uterus/cervix, or vagina.

Taking birth control pills can increase your risk of blood clots, stroke, or heart attack.

Smoking can greatly increase your risk of blood clots, stroke, or heart attack. You should not take this medicine if you smoke and are over 35 years old.

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

Taking this medicine can raise your chances of getting blood clots, having a stroke, or having a heart attack. You are at a higher risk if you have high blood pressure, diabetes, high cholesterol, or if you are overweight. Your risk of stroke or blood clots is greatest during the first year of using birth control pills. Your risk is also high if you start taking this medicine again after not using it for 4 weeks or longer.

Smoking can significantly increase your risk of blood clots, stroke, or heart attack. Your risk goes up as you get older and the more you smoke. You should not take birth control pills if you smoke and are over 35 years old.

Do not use if you are pregnant. Stop using this medicine and inform your doctor immediately if you become pregnant or if you miss two menstrual periods in a row. If you have recently given birth, wait at least 4 weeks before starting birth control pills.

You should not take birth control pills if you have:

  • untreated or uncontrolled high blood pressure;
  • heart disease (chest pain, coronary artery disease, history of heart attack, stroke, or blood clot);
  • a higher risk of blood clots due to a heart issue or a hereditary blood condition;
  • circulation problems (especially if caused by diabetes);
  • a history of hormone-related cancer, or cancer of the breast, uterus/cervix, or vagina;
  • unusual vaginal bleeding that has not been evaluated by a doctor;
  • liver disease or liver cancer;
  • severe migraine headaches (with aura, numbness, weakness, or vision changes), especially if you are older than 35;
  • a history of jaundice caused by pregnancy or birth control pills; or
  • if you are taking any hepatitis C medication that includes ombitasvir/paritaprevir/ritonavir (Technivie).

Inform your doctor if you have ever had:

  • heart disease, high blood pressure, or if you are at risk for blood clots;
  • high cholesterol or triglycerides, or if you are overweight;
  • depression;
  • diabetes, underactive thyroid, gallbladder disease;
  • a seizure or migraine headache;
  • irregular menstrual cycles; or
  • fibrocystic breast disease, lumps, nodules, or an abnormal mammogram.

Camrese Lo (91 Day) can slow down breast milk production. You should not breast-feed while using this medicine.

This section was rewritten for readability and reviewed for meaning.

Birth control pills side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Birth control pills may cause serious side effects. Stop using birth control pills and call your doctor right away if you have:

  • signs of a stroke--sudden numbness or weakness (especially on one side of the body), severe headache, slurred speech, balance problems;
  • signs of a blood clot--sudden vision loss, stabbing chest pain, feeling short of breath, coughing up blood, swelling or redness in an arm or leg;
  • heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;
  • liver problems--loss of appetite, upper stomach pain, tiredness, fever, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
  • increased blood pressure--severe headache, blurred vision, pounding in your neck or ears;
  • swelling in your hands, ankles, or feet;
  • changes in the pattern or severity of migraine headaches;
  • a breast lump; or
  • symptoms of depression--sleep problems, weakness, tired feeling, mood changes.

Common side effects of Camrese Lo (91 Day) may include:

  • mild nausea (especially when you first start taking this medicine), vomiting, bloating, stomach cramps;
  • breast tenderness or swelling, nipple discharge;
  • freckles or darkening of facial skin, increased hair growth, loss of scalp hair;
  • changes in weight or appetite;
  • problems with contact lenses;
  • vaginal itching or discharge; or
  • changes in your menstrual periods, decreased sex drive.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

What happens if I miss a dose?

Follow the patient instructions that come with your medicine. Missing a pill increases your chance of getting pregnant.

If you miss one active pill, take two pills on the day you remember. Then take one pill each day for the rest of the pack.

If you miss two active pills in a row, take two pills each day for two days in a row. Then take one pill each day for the rest of the pack. Use back-up birth control for at least 7 days after missing the pills.

If you miss three active pills in a row, do not take the missed pills. Continue taking 1 pill each day on schedule according to the pill package and leave the missed pills in the package. You may have some bleeding or spotting if you miss three pills in a row. Use back-up birth control for at least the next 7 days.

If you miss a reminder pill, throw it away and keep taking one reminder pill each day until the pack is finished. You do not need back-up birth control if you miss a reminder pill. If your period does not start while you are taking the reminder pills, call your doctor because you might be pregnant.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include nausea or vaginal bleeding.

Do not smoke while taking birth control pills, especially if you are older than 35 years of age.

Birth control pills will not protect you from sexually transmitted diseases—including HIV and AIDS. Using a condom is the only way to protect yourself from these diseases.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect birth control pills?

Other drugs may interact with birth control pills, including prescription and over-the-counter medicines, vitamins, and herbal products. Some drugs can make birth control pills less effective, which may result in pregnancy. Inform your doctor about all your current medicines and any medicine you begin or stop using.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
General medicine information Consumer-friendly language

Content is provided for education and is not medical advice. See our medical disclaimer.