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Estradot Patches

  • Oestrogen HRT patch for menopausal symptoms
  • Helps reduce hot flushes, night sweats and dryness
  • Applied twice a week
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Pharmacy, clinic and prescribers based in Greater Manchester.

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Estradot Patches

Medication Name Estradot transdermal patches
Medication Form Transdermal (stick-on) patch
Used for Relief of postmenopausal symptoms (like hot flushes); prevention of osteoporosis (50, 75 and 100 mcg strengths only)
Who can use Postmenopausal women who have not had a natural period for at least 12 months
Active Ingredients Estradiol hemihydrate
Other Ingredients Adhesive matrix and backing film
Available Strengths 25, 37.5, 50, 75, 100 micrograms per 24 hours
Usual Dose One patch applied and replaced twice weekly (every 3 to 4 days); lowest effective dose as prescribed by your doctor
Common Side Effects Headache, skin reactions at the application site, breast pain, menstrual pain
Prescription Required Yes
Patient Information Leaflet Estradot Patient Information Leaflet

What are Estradot Patches for?

Estradot patches are a hormone replacement therapy (HRT) used to relieve symptoms that occur after the menopause. During the menopause, oestrogen levels in the body drop, which can cause symptoms like hot flushes. Estradot is prescribed to help alleviate these symptoms in postmenopausal women.

The 50, 75 and 100 mcg strengths can also be prescribed to prevent osteoporosis (fragile bones) after the menopause, where other treatments are not suitable.

How do Estradot Patches work?

Estradot patches contain estradiol hemihydrate, a form of oestrogen. Each patch is applied to the skin and delivers a steady, controlled amount of estradiol directly into the bloodstream through the skin over a 24-hour period.

After the menopause, the body produces significantly less oestrogen. By replacing this oestrogen, Estradot helps to reduce the symptoms this decline can cause. Each patch is worn continuously for 3 to 4 days before being replaced, maintaining a consistent level of oestrogen in the body.

Who can use Estradot Patches?

Estradot is suitable for postmenopausal women who have not had a natural period for at least 12 months.

Don’t use Estradot if you:

  • Are allergic to estradiol or any ingredients in the patch
  • Have or previously had breast cancer, endometrial cancer, blood clots, stroke, liver disease, porphyria, or unexplained vaginal bleeding

Speak to a healthcare professional before use if you:

  • Have high blood pressure, liver disease, epilepsy, SLE, otosclerosis, triglycerides, kidney problems, angiodema, diabetes, migraines, asthma, or gallbladder problems
  • Have fibroids, endometriosis, or a family history of hormone-related cancers
  • Have an increased risk of blood clots
  • Smoke or have cardiovascular risk factors

How to Use Estradot HRT Patches

Each Estradot patch is replaced twice weekly, every 3 to 4 days. It helps to change your patch on the same two days each week (for example, every Monday and Thursday). Your pack includes a calendar checklist to help you keep track.

Where to Apply the Patch

Apply the patch to the lower abdomen, below the waistline. Don’t apply it to the breasts or any area near the breasts. Each time you change your patch, choose a different area of skin and avoid applying a new patch to the same spot for at least one week.

Before You Apply

Make sure the skin is:

  • Clean, dry and cool
  • Free of powder, oil, moisturiser or lotion
  • Free of cuts or irritation

Applying the Patch

  1. Tear open the protective pouch at the indentation and remove the patch. Don’t use scissors, as this could damage the patch.
  2. Hold the patch with the protective backing facing you. Peel off one side of the backing and discard it. Avoid touching the sticky side with your fingers.
  3. Apply the sticky side to a dry area of your lower abdomen and smooth down. Fold back the remaining side of the patch.
  4. Grasp the straight edge of the remaining backing and pull it off.
  5. Press the patch firmly in place with the palm of your hand for about 10 seconds. Run your finger around the edges to ensure good contact with the skin.

When removing a patch, peel it off and fold it in half with the sticky side inwards before disposing of it safely. Don’t flush used patches down the toilet.

Women with a Uterus

If you still have your womb, your doctor or pharmacist will prescribe a progestogen alongside Estradot. This is taken for at least 12 to 14 days every month to reduce the risk of cancer of the womb lining. You may experience some irregular bleeding or spotting during the first few months of treatment. Tell your doctor if heavy bleeding continues or persists beyond a few months.

If the Patch Falls Off

If the patch comes off during bathing or showering, shake off any water, allow the skin to dry and cool, then reapply the same patch to a different area of the lower abdomen. If the patch doesn’t stick completely, use a new one. In either case, continue changing your patches on the same days as your original schedule.

If You Forget to Change Your Patch

Change the patch as soon as you remember and return to your original schedule from that point. Don’t apply an extra patch to make up for a forgotten one.

Possible Side Effects of Estradot

Like all medicines, Estradot can cause side effects, although not everyone experiences them.

Common:

  • Breast tenderness
  • Headache
  • Skin redness or irritation at the patch site
  • Nausea or bloating
  • Vaginal spotting (in the first months)

Less common:

  • Mood changes
  • Fluid retention

Serious (seek medical help):

  • Blood clot symptoms
  • Chest pain or shortness of breath
  • Sudden severe headache

For a complete list of side effects, read the Estradot Patient Information Leaflet.

Stop using Estradot and get immediate medical attention if you experience sudden chest pain, difficulty breathing, painful swelling or redness in the legs, yellowing of the skin or eyes, or signs of a serious allergic reaction. Should this happen, call 999 or go to A&E.

Reporting Estradot Side Effects

If you notice any side effects, tell your doctor or pharmacist, even if they are not listed here. You can also report side effects directly via the Yellow Card Scheme. This helps improve the safety of this medicine.

Estradot Patches Ingredients

Active Ingredient: Estradiol hemihydrate

Other Ingredients (adhesive layer): Acrylic adhesive, silicone adhesive, oleyl alcohol, dipropylene glycol, povidone (E1201)

Backing Layer: Ethylene/vinyl acetate copolymer and vinylidene chloride/methyl acrylate copolymer laminate

Release Liner: Fluoropolymer-coated polyester film

Important Information

  • Estradot is not a contraceptive. If it has been less than 12 months since your last period, or you’re under 50, you may still need additional contraception. Speak to your doctor for advice.
  • Go for regular breast screening as recommended by your doctor. Inform the healthcare professional taking your mammogram that you use HRT, as it can increase breast density and may affect the result.
  • Some medicines can affect how Estradot works, including certain epilepsy medications, tuberculosis treatments, HIV medicines, hepatitis C treatments, and St John’s Wort. Always tell your doctor or pharmacist that you’re using Estradot if any new medicines are prescribed.
  • Tell your surgeon you’re using Estradot before any planned surgery. You may need to stop using it 4 to 6 weeks before an operation to reduce the risk of a blood clot. Ask your doctor when it is safe to start again.
  • Do not refrigerate or freeze Estradot patches. Store in the original packaging in a cool, dry place.
  • Don’t use after the expiry date shown on the carton.
  • Keep out of the sight and reach of children.

Estradot Patches Reviews

FAQs About Estrodot Patches


Evorel and Estradot are not the same, though both are oestrogen-only HRT patches containing estradiol. They are made by different manufacturers and come in different strengths and patch sizes. Estradot is available in five strengths (25, 37.5, 50, 75 and 100 mcg/24 hours), while Evorel patches come in their own range of strengths. Both work in the same way, delivering estradiol through the skin, but they are not directly interchangeable. Always use the brand and strength prescribed by your doctor.

Estradot and Evorel Conti are both HRT patches, but they are not the same. Estradot is an oestrogen-only patch, whereas Evorel Conti is a combined HRT patch containing both oestrogen and a progestogen in one. Evorel Conti patches are intended for postmenopausal women who still have their womb and prefer not to take a separate progestogen tablet. If you have had a hysterectomy, an oestrogen-only patch like Estradot is generally appropriate. Your doctor or pharmacist will advise on which is right for you based on your medical history.

Bathing, swimming, showering and exercising should not affect the patch, provided it has been applied correctly. When sunbathing or using a sunbed, cover the patch. When swimming, you can wear the patch under your bathing suit.

Estradot is available in five strengths: 25, 37.5, 50, 75 and 100 micrograms per 24 hours. The higher the strength, the more estradiol is delivered through the skin each day. Your doctor or pharmacist will prescribe the lowest effective dose for your symptoms. 

The 25 and 37.5 mcg strengths are typically used for symptom relief, while the 50, 75 and 100 mcg strengths may also be used to prevent osteoporosis after the menopause.

Stopping Estradot may cause breakthrough bleeding or spotting. If this happens, speak to your doctor. After a long break from treatment, consult your doctor before starting to use the patch again.

Yes, Estradot is an oestrogen-only patch. It doesn’t contain a progestogen (sometimes referred to as progesterone). If you still have your womb, your doctor will prescribe a separate progestogen alongside Estradot to protect the womb lining. If you have had a hysterectomy, oestrogen alone is usually sufficient. Women who require both oestrogen and progesterone in a single patch may be prescribed a combined HRT patch instead.

Both HRT patches and gels deliver oestrogen through the skin and work in the same way, but they suit different people. Patches like Estradot are applied twice weekly and stay in place during daily activities, making them a convenient choice if you prefer not to think about your HRT every day. Gels are applied daily and may offer more flexibility with dosing. Neither HRT patches or gels are better – it comes down to your lifestyle and personal preference.

Estradot Patches for Symptoms of Menopause

A View From Our Expert

“Estadot is a good HRT treatment option for women who want a reliable, low-maintenance way to manage menopause symptoms. It’s ideal if you struggle to swallow tablets or if you experience nausea with oral HRT. It also comes in five different dosages, so we can adjust the dose to suit your needs”

Dr Hussain Ahmad

Our Experienced UK-based Pharmacy Team

Clinical Consultant
MUDr, MRCEM, EBCEM, FRCEM
GMC no. 7176414

Pharmacist
MPharm
GPhC no. 2065469

Pharmacist
MPharm
GPhC no. 2046514

Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 29th April 2026.

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