What is Combipatch: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Combipatch is a brand-name transdermal system that delivers a steady dose of female hormones. Healthcare professionals use it as a hormone replacement treatment in menopausal women or women who don’t produce enough estrogen. The patch contains estrogen (estradiol) and progestin (norethindrone). Women will replace the patch every three to four days (twice weekly).

Combipatch overview

BRAND NAMES:

  • Combipatch

Generic Names:

  • Estradiol/norethindrone acetate

Uses:

  • Treats menopause symptoms or low estrogen in women with a uterus 

Therapeutic Classes:

  • Estrogen/Progestin Combination

Forms:

  • Patch

How it’s taken:

  • Absorbed through the skin

What is Combipatch used for?

Combipatch relieves vasomotor symptoms of menopause, such as hot flashes and night sweats. The patch is also used to treat menopausal changes to the genitals, such as vaginal atrophy, dryness, and discomfort during sexual intercourse. Healthcare professionals also use it as a hormone replacement treatment in women who don’t produce enough estrogen (hypoestrogenism) due to ovary removal, ovarian failure, or hypogonadism.

What form(s) does Combipatch come in

  • Transdermal patch

    • 0.05 mg estradiol/0.14 mg norethindrone per day

    • 0.05 mg/0.25 mg per day

What are common Combipatch doses?

  • For moderate to severe vasomotor symptoms of menopause or vulvovaginal atrophy due to menopause: One patch at the lowest effective dose every three to four days (twice a week) 

  • For low estrogen: One patch at the lowest effective dose every three to four days (twice a week)

Common Combipatch prescriptions

  • CombiPatch
    1 box (8 twice weekly patches), 0.05-0.14mg/day box

  • CombiPatch
    0.05-0.14mg/day patch twice weekly

  • CombiPatch
    0.05-0.25mg/day patch twice weekly

How to take Combipatch

  • Follow all the prescriber’s instructions.

  • Please read the Patient Information sheet that comes with this medicine before you start using Combipatch.

  • Please read and follow the Instructions for Use that come with this medicine.

  • Apply a new patch twice weekly, about every three or four days. You can choose the days of the week to replace patches, but keep to your schedule.

  • Combipatch may be prescribed on a 28-day cycle, with an estradiol-only patch worn for the first 14 days and on the last 14 days of the cycle. Make sure to use the right patch during these cycles.

  • Remove the old patch before applying a new one.

    • Remove the patch carefully to avoid irritating the skin.

    • Once removed, fold the used patch in half with the sticky side together. 

    • Throw it in the trash out of the reach of children and pets. 

    • Do not flush the patch down the toilet.

  • The Combipatch should be placed on the lower abdomen.

    • Choose a spot different from the patch being replaced.

    • Do not place the patch near the breasts.

    • Do not place the patch on your waistline; it may get rubbed or pulled off.

    • Apply the patch to skin that is clean and dry.

    • Do not apply the patch to damaged skin that is irritated, burned, hairy, or has a skin condition.

  • To apply a new patch:

    • Leave the patch in its sealed wrapper until you are ready to put it on. 

    • Tear the wrapper open carefully. Never open the wrapper with scissors. 

    • Peel off the protective liner from the sticky side without touching the surface of the sticky part of the patch.

    • Place the patch on the skin sticky side down.

    • Peel off the remaining protective layer.

    • Press firmly for 10 seconds to attach the patch.

    • Rub the edges of the patch with a finger to get good adhesion.

  • Once the patch is applied:

    • You may bathe, shower, or swim while wearing a patch. 

    • Do not expose the patch to the sun for long periods.

    • If a patch falls off, put it back on. If the patch does not stick completely, put on a new one, but continue following the original schedule.

  • Store the unopened pouches at room temperature for up to six months.

What to do if you miss a dose of Combipatch

  • If you forget to change a patch, remove the old one and put on a new one as soon as you can. 

  • Remain on the twice-a-week schedule for the next patch.

  • Do not use two patches to make up for a forgotten patch.

Combipatch contraindications

  • This medicine is not right for everyone. 

  • Do not use it if you have had an allergic reaction to estrogen or progestin, are pregnant, or have:

    • Abnormal vaginal bleeding that has not been checked by a doctor

    • Any current or past hormone-dependent cancer, such as breast or ovary cancer

    • Any blood clot problem, including deep vein thrombosis (DVT) or pulmonary embolism (PE)

    • A history of stroke

    • A history of heart attack

    • Liver disease

  • Combipatch should not be used by women who have had a hysterectomy.

Combipatch warnings

  • Taking estrogen/progestogen medications like Combipatch increases the risk of:

    • Blood clots

    • Heart attack

    • Stroke

    • Breast cancer

    • Dementia (in women 65 years of age or older)

  • Other serious side effects include:

    • Cancer of the uterine lining

    • Cancer of the ovaries

    • Fibroid enlargement

    • High blood pressure

    • High triglyceride levels 

    • Liver problems

    • Gallbladder disease

    • Thyroid problems

    • Depression

    • Blood clots in the retina

  • To decrease the risks of taking Combipatch:

    • Immediately tell the prescriber about unusual vaginal bleeding

    • Have a mammogram, breast exam, and pelvic exam once yearly or more often if necessary

    • Reduce or quit smoking 

  • The doctor will need to regularly review Combipatch therapy with you, adjust the dose, perform blood tests, and monitor for side effects. Keep all appointments. 

  • Another way to reduce the risk of serious side effects is to tell the doctor about all your medical conditions before starting treatment, particularly:

    • Unusual vaginal bleeding

    • Endometriosis

    • Asthma

    • Seizures

    • Diabetes

    • Migraine headaches

    • Heart problems

    • Liver problems

    • Kidney problems

    • Thyroid problems

    • High calcium

    • High blood pressure

    • High cholesterol 

    • Lupus 

  • Tell any doctor or other healthcare provider who treats you that you are using this medicine. It can alter the results of important medical tests. You may need to stop using this medicine several days before a medical procedure or prolonged bed rest.

Combipatch interactions

  • To avoid possible drug interactions, tell the prescribing healthcare provider about all the prescription drugs, over-the-counter medications, and supplements being taken, particularly:

    • Macrolide antibiotics such as clarithromycin or erythromycin

    • Oral azole antifungals such as ketoconazole or itraconazole

    • Antiviral drugs called protease inhibitors, such as ritonavir or nelfinavir

    • Carbamazepine, efavirenz, nevirapine, Paxlovid, phenobarbital, phenylbutazone, rifabutin, rifampin, St. John’s wort

  • Do not drink grapefruit juice when wearing a Combipatch.

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

Combipatch side effects

Serious Side Effects

Immediately contact a doctor or get medical attention if you notice any signs or symptoms of a possible serious side effect, including:

  • Unusual vaginal bleeding

  • New breast lumps, breast discharge

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

  • Chest pain that may spread, trouble breathing, nausea, unusual sweating, fainting

  • Severe pains in the chest or legs, weakness, fatigue

  • Sudden loss of vision, double vision, protruding eyeball, migraine

  • Swelling in your face, hands, ankles, or feet

  • Seizures

  • Steady pain in the upper right abdomen 

  • Yellow skin or eyes, dark urine

  • Allergic reaction: Itching, hives, swollen lips, face, or tongue, trouble breathing, abdominal pain, vomiting

Less Serious Side Effects

  • Headache

  • Breast pain

  • Irregular vaginal bleeding or spotting

  • Abdominal cramps

  • Stomach cramps

  • Bloating

  • Nausea

  • Vomiting

  • Fluid retention

  • Vaginal yeast infection

  • Redness or irritation where the patch was applied