Skip to main content

Estradiol and norethindrone (Transdermal)

Generic name: estradiol and norethindrone [ es-tra-DYE-ol, nor-ETH-in-drone-AS-e-tate ]
Brand name: Combipatch
Drug class: Sex hormone combinations

Medically reviewed by Drugs.com. Last updated on Jul 25, 2023.

Transdermal route(Patch, Extended Release)

Estrogens with or without progestins should not be used for the prevention of cardiovascular disease or dementia. An increased risk of DVT, pulmonary embolism, stroke, myocardial infarction, and invasive breast cancer have been reported. An increased risk of probable dementia in postmenopausal women 65 years of age or older has also been reported. There is an increased risk of endometrial cancer in women with a uterus who use unopposed estrogens. Estrogens with or without progestins should be prescribed at the lowest effective doses and for the shortest duration consistent with treatment goals and risks for the individual woman .

Uses for estradiol and norethindrone

Estradiol and norethindrone skin patch is used to treat moderate to severe hot flashes and other symptoms of menopause. It is also used to treat changes in and around the vagina (such as vaginal dryness, itching, and burning) caused by low estrogen levels or menopause. This medicine is also used to treat certain conditions in women before menopause if their ovaries do not make enough estrogens naturally.

This medicine is a combination of two hormones: an estrogen hormone (estradiol) and a progestin hormone (norethindrone). These hormones are absorbed through your skin into your body. It works by preventing symptoms, such as feelings of warmth in the face, neck, and chest, or sudden strong feelings of heat and sweating (hot flashes) in women during menopause.

This medicine is available only with your doctor's prescription.

Before using estradiol and norethindrone

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Use of CombiPatch® is not indicated in children.

Geriatric

Although appropriate studies on the relationship of age to the effects of CombiPatch® have not been performed in the geriatric population, no geriatric-specific problems have been documented to date. However, elderly patients are more likely to have breast cancer, strokes, or dementia, which may require caution in patients receiving this medicine.

Breast Feeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

Proper use of estradiol and norethindrone

It is very important that you use this medicine exactly as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may cause unwanted side effects.

This medicine comes with a patient information leaflet. Read and follow the instructions carefully. Ask your doctor if you have any questions.

Before starting CombiPatch® therapy, you may need to tell your doctor if you are currently using continuous estrogen or combination estrogen plus progestin therapy. This will allow your doctor to determine when to start your treatment.

You may have monthly bleeding or spotting at the completion of each cycle.

This transdermal patch system is to be applied on the skin of the lower abdomen (lower stomach area) two times a week, depending on your dosing regimen (either continuous combined regimen or continuous sequential regimen), as advised by your doctor.

To use the skin patch:

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

Missed Dose

If you forget to wear or change a patch, put one on as soon as you can. If it is almost time to put on your next patch, wait until then to apply a new patch and skip the one you missed. Do not apply extra patches to make up for a missed dose.

Storage

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Store the patches at room temperature in a closed container, away from heat, moisture, and direct light.

Store the unopened pouches at room temperature for up to 6 months. Do not store the patch outside of its pouch.

Precautions while using estradiol and norethindrone

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and does not cause unwanted effects. Pelvic exam, breast exam, and mammogram (breast x-ray) may be needed to check for unwanted effects, unless your doctor tells you otherwise. Be sure to keep all appointments.

It is unlikely that a postmenopausal woman may become pregnant. But, you should know that using this medicine while you are pregnant could harm your unborn baby. If you think you have become pregnant while using the medicine, tell your doctor right away.

Using this medicine may increase your risk for having blood clots, strokes, or heart attacks. This risk may continue even after you stop using the medicine. Your risk for these serious problems is even greater if you have high blood pressure, high cholesterol in your blood, diabetes or are overweight or smoke cigarettes. Contact your doctor immediately if you experience chest pain, confusion, difficulty speaking, double vision, headaches, an inability to move arms, legs or facial muscle, or an inability to speak.

Using this medicine may increase your risk of endometrial cancer, breast cancer, or uterine cancer. Talk with your doctor about this risk. Check with your doctor immediately if your experience abnormal vaginal bleeding.

Do not use this medicine if you have had your uterus (womb) removed (hysterectomy).

Using this medicine may increase your risk of dementia, especially in women 65 years of age and older.

Check with your doctor immediately if severe headache or sudden loss of vision or any other change in vision occurs while you are using this medicine. Your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor).

This medicine may cause serious types of allergic reactions, including anaphylaxis which can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, lightheadedness or dizziness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth with this medicine.

Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine before you have surgery or if you need to stay in bed for an extended time. This medicine may affect the results of certain medical tests.

Do not eat grapefruit or drink grapefruit juice while you are using this medicine. Grapefruit and grapefruit juice may change the amount of this medicine that is absorbed in the body.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal (eg, St. John's wort) or vitamin supplements.

Side Effects of estradiol and norethindrone

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Less common

Incidence not known

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Less common

Incidence not known

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Commonly used brand name(s)

In the U.S.

In Canada

Available Dosage Forms:

Therapeutic Class: Estrogen/Progestin Combination

Pharmacologic Class: Estrogen

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.