Estraderm MX

Estraderm MX is a transdermal oestrogen patch used as hormone replacement therapy for the relief of menopausal symptoms.

Each patch delivers estradiol through the skin at a controlled rate over three to four days, maintaining steady blood levels without the peaks and troughs associated with oral tablets.

It is prescribed for women experiencing hot flushes, night sweats, vaginal dryness, and other symptoms caused by declining oestrogen levels.

The matrix-design patch is thin and transparent, adhering directly to the skin. Unlike older reservoir patches, the matrix system has no liquid centre, making it less prone to leakage.

Estradiol delivered transdermally bypasses first-pass liver metabolism, which may offer advantages in terms of reduced impact on liver proteins, clotting factors, and triglyceride levels compared with oral HRT.

Estraderm MX is available in several strengths (25, 50, 75, and 100 microgram patches), allowing flexible dose adjustment.

Women with an intact uterus must also take a progestogen for at least 12 days each cycle to protect the endometrium.

Apply one patch to a clean, dry, non-irritated area of skin on the lower trunk, below the waist. Avoid the breasts and the waistline.

Press the patch firmly in place for about ten seconds to ensure good contact. Change the patch twice weekly, on the same two days each week.

Rotate the application site with each new patch, allowing at least one week before reusing the same area.

If a patch falls off, replace it with a new one and continue your usual schedule. You may bathe, shower, or swim with the patch in place, although prolonged soaking should be avoided.

Treatment is usually started with the Estraderm MX 50 patch (delivering 50 micrograms of estradiol per 24 hours).

After four to six weeks, the dose may be adjusted up or down depending on symptom control and tolerability. The lowest effective dose should be used. Patches are changed twice weekly.

Women with an intact uterus must add oral progestogen for 12 to 14 days per cycle.

Common side effects (up to 1 in 10 users) include skin irritation at the patch site, breast tenderness, headache, and nausea. Uncommon effects include bloating, mood changes, and leg cramps.

Application-site redness usually resolves within a few days of removing the patch.

Rare risks shared with all HRT include venous thromboembolism, stroke, and a small increase in breast cancer risk with prolonged use.

Transdermal oestrogen may carry a lower thrombotic risk than oral preparations, though this remains under ongoing study.

Do not apply patches to broken, irritated, or oily skin. Ensure the area is free of creams or powders before application.

If you develop persistent skin reactions at the patch site, discuss alternatives with your prescriber. Regular breast screening and gynaecological reviews are recommended during treatment.

Inform your doctor if you have a history of blood clots, liver disease, fibroids, endometriosis, or migraine, as these conditions require careful monitoring on HRT.

Estraderm MX must not be used in women with known or suspected breast cancer, oestrogen-dependent malignancy, undiagnosed vaginal bleeding, untreated endometrial hyperplasia, active or past venous thromboembolism without anticoagulation, active arterial thromboembolic disease, acute liver disease, known thrombophilic disorders, or hypersensitivity to estradiol or any component of the patch.