What is Isibloom: Uses, Warnings & Interactions

Updated Aug 11, 2025  •  Published Dec 30, 2020

Isibloom is a prescription hormonal birth control pill that contains a progestin (desogestrel) and an estrogen (ethinyl estradiol). Women take one pill a day from a blister pack with 21 active pills and seven reminder pills without hormones. Birth control pills can cause serious side effects, so women will need to review their overall health with their prescriber.

Isibloom overview

BRAND NAMES:

  • Apri, Averi, Azurette, Bekyree, Cyred EQ, Enskyce, Isibloom, Juleber, Kalliga, Kariva, Pimtrea, Reclipsen, Simlya, Viorele, Volnea

Generic Names:

  • Desogestrel-ethinyl estradiol

Uses:

  • Prevents pregnancy

Therapeutic Classes:

  • Hormonal contraceptive, monophasic contraceptive combination

Forms:

  • Tablet

How it’s taken:

  • By mouth

What is Isibloom used for?

Isibloom is a birth control pill that prevents pregnancy.

What form(s) does Isibloom come in

  • Tablet

    • 0.15 mg norgestimate / 0.03 mg ethinyl estradiol

What are common Isibloom doses?

  • For the prevention of pregnancy: One tablet per day starting on the first day of the menstrual period or the first Sunday following the onset of menstruation

Common Isibloom prescriptions

  • Isibloom
    1 package (28 tablets), 0.15-30mg-mcg disp pack

  • Isibloom
    28 tablets disp pack

How to take Isibloom

  • Read and follow the instructions printed on the package insert.

  • Take Isibloom tablets at the same time every day. 

  • Take one tablet per day. Do not miss a dose.

  • There are 21 orange tablets containing hormones and seven inert green tablets. Take all tablets, including the inert tablets.

  • Take the first tablet (number 1) on the day your period starts or the first Sunday after your period starts. 

  • When switching from another type of hormonal birth control, take the first pill the day you would have started a new blister pack, replaced a vaginal ring or patch, or the day an implant or IUD is removed.

  • Each tablet has a number assigned to it on the blister pack. Take each tablet in order.

  • Take the first orange pill from a new pack the day after the last green pill is taken from the old pack. 

  • Take the first pill of each new pack on the same day of the week each cycle.

  • Swallow the tablet whole with a drink of water.

    • Do not crush, break, or chew it.

    • Tablets can be taken without regard to food. 

  • If you vomit or have diarrhea, use backup birth control until you can talk to the prescriber. 

  • Store Isibloom at room temperature in the original carton.

What to do if you miss a dose of Isibloom

  • Do not forget to take an Isibloom dose. Pregnancy is more likely when doses are missed.

    • In addition to taking missed doses, it may be necessary to use backup birth control for at least seven days if a dose is missed.

  • If an orange pill is missed:

    • Take it as soon as possible. 

    • Take the next tablet at its regular time.

    • Two doses can be taken on the same day to make up for a missed dose. 

    • Pregnancy is not a risk if just one pill is missed. Backup birth control is not necessary.

  • If you miss two orange pills in a row in the first two weeks:

    • Take two doses on the day you remember and two doses the next day.

    • Return to the regular dosing schedule.

    • Two consecutive missed doses increase the risk of pregnancy. Use backup birth control for at least seven days.

  • If you miss two orange pills in a row in the third week: 

    • Start over with a new Isibloom kit.

    • Day 1 starters should throw out the current pill pack and start with a new one.

    • Sunday starters should continue to take orange pills from the old pack and then start a new pack on Sunday.

    • You can get pregnant in the first seven days of starting a new kit. Use backup birth control.

  • If you miss three or more orange pills in a row in any week:

    • Start over with a new Isibloom kit. 

    • Day 1 starters should throw out the current pack and start with a new one.

    • Sunday starters should continue to take orange pills from the old kit and then start a new one on Sunday.

    • You can get pregnant in the first seven days of starting a new kit. Use backup birth control.

  • If you’re not sure about a missed pill, use backup birth control.

Isibloom contraindications

  • Some women should not use Isibloom. 

  • Do not use Isibloom if you are pregnant, older than 35, and smoke, or have:

    • Unusual vaginal bleeding that has not been checked by a healthcare provider

    • A history of heart attack or stroke

    • A history of blood clots in the deep veins of the legs

    • Current blood clots in the legs, lungs, or eyes

    • Chest pain

    • Persistently high blood pressure

    • Current or past cerebral vascular or coronary artery disease

    • Valvular heart disease with complications

    • Diabetes with blood vessel problems

    • Headaches with focal neurological symptoms

    • Breast cancer

    • Cancer of the lining of the uterus, the cervix, or the vagina

    • A history of jaundice associated with pregnancy or birth control pills

    • Liver tumor

    • Major surgery involving prolonged bed rest

Isibloom warnings

  • Tell any doctor or other healthcare provider who treats you that you are using this medicine, especially before a medical or dental procedure. 

    • Oral contraceptives can interfere with several important blood tests. 

  • Your healthcare provider may need to do lab tests to check on the effects of this medicine. Keep all appointments.

  • Immediately tell the prescriber if you become pregnant, think you’re pregnant, or miss two periods in a row. 

  • Tell the healthcare provider if you smoke. 

  • Before starting Isibloom, tell the prescriber if you smoke, are breastfeeding, or have:

    • Recently given birth

    • Heart or blood vessel disease

    • High blood pressure

    • Elevated cholesterol or triglyceride levels

    • Diabetes

    • Migraines

    • Depression

    • Breast nodules

    • Fibrocystic disease of the breasts

    • An abnormal mammogram or breast X-ray

    • Liver disease

    • Gallbladder disease

    • Kidney disease

    • A history of light periods

  • This medicine may cause serious medical problems, including:

    • Increased risk of blood clots, heart attack, and stroke

    • Increased risk of breast or cervical cancer

    • Liver problems

    • Gallbladder problems

    • High blood pressure

    • High cholesterol

    • Severe, persistent, or worsening headaches

    • Increased risk of ectopic pregnancy

  • Isibloom can cause a spotty darkening of the skin, particularly on the face.

  • Isibloom should not be used four weeks before or two weeks after major surgery.

  • Women wearing contact lenses should immediately talk to the prescriber if they experience vision changes or are unable to wear the lenses. Isibloom can change the curvature of the cornea.

  • This medicine will not protect you from HIV/AIDS or other sexually transmitted diseases.

Isibloom interactions

  • Do not take Isibloom with any hepatitis C drug containing ombitasvir/paritaprevir/ritonavir.

  • To avoid drug interactions, tell the prescribing healthcare provider about all prescription drugs, over-the-counter medicines, and supplements regularly used before taking Isibloom, especially:

    • Other birth control pills

    • Barbiturates

    • Macrolide antibiotics

    • Drugs that treat fungal infections 

    • Anticonvulsants

    • Antiviral drugs that treat hepatitis C or HIV/AIDS

    • Thyroid hormones

    • St. John’s wort

    • Acetaminophen, aprepitant, ascorbic acid, atorvastatin, bosentan, clofibric acid, cyclosporine, felbamate, prednisolone, rifabutin, rifampicin, rosuvastatin, rufinamide, theophylline, tizanidine

  • Avoid grapefruit and grapefruit juice when taking Isibloom.

  • Women taking colesevelam should take Isibloom four hours before or four hours after a colesevelam dose. 

  • Tell other healthcare providers you are using this medicine before they prescribe new medications.

Isibloom side effects

Serious side effects

Talk to a healthcare provider if you notice any signs or symptoms of a possible serious side effect, including:

  • Sudden and sharp chest pain, coughing up blood, shortness of breath

  • Sudden or severe headache, numbness or weakness on one side of your body, dizziness, weakness, problems with vision, speech, or walking

  • Sudden pain in the calf, persistent leg pain

  • Sudden complete or partial loss of vision

  • Vision changes, inability to continue wearing contact lenses

  • Dark urine, light-colored stools, loss of appetite, yellow skin or eyes, fever, fatigue, loss of appetite

  • Breast lumps

  • Severe stomach pain, nausea, vomiting

  • Depressed mood, difficulty sleeping, lack of energy, fatigue

  • Allergic reaction: Itching or hives, skin rash, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

Some potentially serious side effects of Isibloom may not have symptoms. A healthcare professional will need to schedule regular visits and do blood tests to spot these problems:

  • High blood pressure

  • High cholesterol and fats

Less serious side effects

  • Irregular vaginal bleeding or spotting

  • Change in menstrual flow

  • Nausea

  • Vomiting

  • Abdominal pain

  • Fluid retention

  • Weight changes

  • Vaginal infection

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