Estradiol patches for menopause come in 0.025, 0.0375, 0.05, 0.075 and 0.1 mg a day. Weekly patches add 0.06 mg, and Menostar is a 0.014 mg bone patch. The number is what the patch releases daily, not what is inside it. Patch size does not tell you the dose.
At the same 0.05 mg a day, the Minivelle label lists a 3.30 cm² patch, while a once-weekly generic from Mylan lists 15.5 cm². Same dose, a patch about 4.7 times bigger. Every number below comes from current FDA labels on DailyMed.
This article provides general information about medication management and is not a substitute for professional medical advice. Consult your doctor or pharmacist for advice specific to your medications.
Estradiol Patch Dosage Chart by Brand
Estradiol patches split into two families: changed once a week or twice a week. Within one product line, a bigger patch means a higher strength, because the multi-strength labels say "the composition of the systems per unit area is identical." Across brands, that rule breaks.
Once-weekly estradiol patches
| Patch | Strengths (mg per day) | Patch sizes, smallest to largest (cm²) | Label |
|---|---|---|---|
| Climara | 0.025, 0.0375, 0.05, 0.06, 0.075, 0.1 | 6.5, 9.375, 12.5, 15, 18.75, 25 | DailyMed |
| Generic once-weekly (Sandoz) | 0.025, 0.0375, 0.05, 0.06, 0.075, 0.1 | 6.5, 9.375, 12.5, 15, 18.75, 25 | DailyMed |
| Generic once-weekly (Mylan) | 0.025, 0.0375, 0.05, 0.06, 0.075, 0.1 | 7.75, 11.625, 15.5, 18.6, 23.25, 31 | DailyMed |
| Generic once-weekly (Zydus) | 0.025, 0.0375, 0.05, 0.06, 0.075, 0.1 | 7.5, 11.25, 15, 18, 22.5, 30 | DailyMed |
| Menostar (bone protection only) | 0.014 (14 mcg) | 3.25 | DailyMed |
Each of these labels gives a "period of use" of 7 days, so one patch covers a full week.
Twice-weekly estradiol patches
| Patch | Strengths (mg per day) | Patch sizes, smallest to largest (cm²) | Label |
|---|---|---|---|
| Vivelle-Dot | 0.025, 0.0375, 0.05, 0.075, 0.1 | 2.5, 3.75, 5.0, 7.5, 10.0 | DailyMed |
| Minivelle | 0.025, 0.0375, 0.05, 0.075, 0.1 | 1.65, 2.48, 3.30, 4.95, 6.6 | DailyMed |
| Dotti | 0.025, 0.0375, 0.05, 0.075, 0.1 | 1.89, 2.83, 3.78, 5.66, 7.55 | DailyMed |
| Lyllana | 0.025, 0.0375, 0.05, 0.075, 0.1 | 1.89, 2.83, 3.78, 5.66, 7.55 | DailyMed |
| Generic twice-weekly (Mylan) | 0.025, 0.0375, 0.05, 0.075, 0.1 | 2.5, 3.75, 5.0, 7.5, 10.0 | DailyMed |
| Generic twice-weekly (Zydus) | 0.025, 0.0375, 0.05, 0.075, 0.1 | 2.7, 4.05, 5.40, 8.1, 10.8 | DailyMed |
The Minivelle label says to replace it "twice weekly (every 3-4 days)." Twice-weekly patches have no 0.06 mg strength. On the weekly side, 0.06 mg is not Climara-only: the Sandoz, Mylan and Zydus generics list it too. The day-by-day version of both routines is in our estradiol patch schedule guide.
Estradiol Patch Size Comparison: Is a Smaller Patch a Lower Dose?
No. Here is the same 0.05 mg a day across five labels. The last column is the total estradiol inside the patch, which is not the daily dose.
| 0.05 mg/day patch | Changed | Patch area | Estradiol inside the patch |
|---|---|---|---|
| Minivelle | Twice a week | 3.30 cm² (about 0.5 sq in) | 0.83 mg |
| Dotti / Lyllana | Twice a week | 3.78 cm² (about 0.6 sq in) | 0.627 mg |
| Vivelle-Dot | Twice a week | 5.0 cm² (about 0.8 sq in) | 0.78 mg |
| Climara | Once a week | 12.5 cm² (about 1.9 sq in) | 3.8 mg |
| Mylan once-weekly generic | Once a week | 15.5 cm² (about 2.4 sq in) | 1.94 mg |
A Climara 0.05 holds about six times more estradiol than a Dotti 0.05. Both are built to release the same 0.05 mg a day. The Climara label also warns that "used patches still contain some active hormones," so fold old patches closed before you throw them out.
The Dotti label says it plainly. It calls Dotti "the revised formulation with smaller system sizes" and says it was "shown to be bioequivalent to the original formulation." Smaller patch, same exposure.
Estradiol Patch mg: What Does the Number Mean?
The mg on the box is a delivery rate. "0.05 mg/day" means the patch delivers 0.05 mg of estradiol a day. Menostar uses micrograms instead: 14 mcg a day is 0.014 mg.
So read the strength, not the size. If a refill looks bigger or smaller than last time, check the mg per day on the pouch first. Blood test numbers need care too. The labels say "a serum estrogen concentration does not predict an individual woman's therapeutic response," so ask your prescriber how to read any result.
The dose is only part of the plan. The labels note that when estrogen is prescribed for a woman with a uterus, prescribers should "consider addition of a progestogen to reduce the risk of endometrial cancer." Our guide to missing a dose of progesterone covers that side of HRT.
Estradiol patches are also used outside menopause, such as in gender-affirming care, where prescribers use different regimens. This chart covers the FDA menopause labeling only.
Estradiol Patch Doses Available Outside the Main Chart
A few patches don't fit the two tables above:
- Menostar (14 mcg a day). Its label approves it only for preventing bone loss after menopause, not for hot flashes. The label adds that prescribers should "first consider the use of non-estrogen medications." Its label describes a two-year study of 417 women aged 60 to 80. The published results found the 0.014 mg patch raised spine bone density by 2.6%, versus 0.6% on placebo.
- Combination patches. Some patches pair estradiol with a progestin in one patch. Climara Pro, for example, lists "0.045 mg/day estradiol and 0.015 mg/day levonorgestrel." These are different products, so they are not in the estradiol-only chart.
- Alora. Older charts still list it as a twice-weekly brand. The FDA drug shortage database lists Alora with the status "Discontinuation." For patches that are still made but hard to find, see our estradiol patch shortage update.
When to Increase Estradiol Patch Dose
No label prints a week number for moving up a strength. The labels give the rule, and your prescriber makes the call.
The Climara label starts hot flash treatment at 0.025 mg a day and says to "make dosage adjustments based on the clinical response." The Vivelle-Dot, Minivelle and Dotti labels start hot flash treatment at 0.0375 mg a day. Those are label starting points, not a plan for you. These labels also tell prescribers to use "the lowest effective dose" and to try tapering or stopping "at 3 to 6 month intervals."
MedlinePlus says it simply: "Your doctor will probably start you on a low dose of transdermal estradiol and may increase your dose if your symptoms are still bothersome." It also says to "talk to your doctor every 3 to 6 months."
The North American Menopause Society's 2022 position statement calls for "the appropriate, often lowest, effective dose." Lowest is often right, but not always.
Give it time, too. In the first Vivelle trials, the 0.0375 and 0.05 mg doses did not beat placebo until about week 6, though a later trial showed 0.0375 mg working by week 4. That timeline is laid out week by week in how long HRT takes to work.
Estradiol Patch Dose Too High: Symptoms the Labels List
The patch labels list what too much estrogen can cause. The Climara label says overdosage "may cause nausea, vomiting, breast tenderness, abdominal pain, drowsiness and fatigue, and withdrawal bleeding." That list comes from the label's overdose section.
The same symptoms also show up at normal strengths. In the trials summarized in the Vivelle-Dot label, breast tenderness was reported by 17.0% of women on the lowest dose (0.025 mg) and 12.9% on the highest (0.1 mg), versus 0% on placebo. It did not climb step by step with the dose. So a sore chest on its own doesn't show which strength is right for you. That is a question for your prescriber.
What to do:
- Call right away for warning signs. The Climara patient information says to call your provider "right away" for new breast lumps, unusual vaginal bleeding, changes in vision or speech, sudden new severe headaches, or severe pains in your chest or legs with or without shortness of breath, weakness and fatigue.
- Call your prescriber if nausea, breast pain or headaches bother you.
- Report any vaginal bleeding to your provider "as soon as possible," as the Climara label advises.
- If you wore extra patches, MedlinePlus says to remove them and call poison control at 1-800-222-1222. More on that in accidentally wore two estradiol patches.
Estrogen patches also carry an FDA boxed warning. In November 2025 the FDA announced it would remove the cardiovascular disease, breast cancer and probable dementia parts, but keep the endometrial cancer warning for estrogen-alone products. The label in your box may still show the older wording.
Estradiol Patch Dose Too Low, or Something Else?
Before assuming the strength is wrong, check these label-described causes with your prescriber:
- A missed or late change. The Vivelle-Dot label says a break in treatment "might increase the likelihood of breakthrough bleeding, spotting and recurrence of symptoms." See forgot to change your estradiol patch.
- A patch that lifted. The Climara label notes that swimming, bathing or a sauna "may decrease the adhesion of the system and the delivery of estradiol." See estradiol patch fell off and where to place your patch.
- A planned week off. If your prescriber set a cyclic schedule, know that the Vivelle-Dot and Dotti labels describe one for women with a uterus, such as "3 weeks on" and "1 week off."
- A recent switch from pills. Those labels start the patch "1 week after withdrawal of oral hormone therapy, or sooner if menopausal symptoms reappear." More in switching from estradiol pills to the patch.
If your dose changes, reset your change day
A new dose can come with a new product. Moving between weekly and twice-weekly patches means new change days, and a new generic may look different from your last box.
That is where old reminders quietly break. Pillo sends a persistent alarm on your exact change days, every Sunday or every Monday and Thursday, until you mark the patch as changed. A Dose Note can hold the new brand name or what the new patch looks like. Download Pillo on Google Play.
FAQ
What is the lowest dose estradiol patch?
Menostar at 14 mcg (0.014 mg) a day is the lowest, but its label approves it only for preventing bone loss after menopause. Among regular patches, the lowest is 0.025 mg a day. Climara starts hot flash treatment there. Vivelle-Dot, Minivelle and Dotti start hot flashes at 0.0375 mg and start bone protection at 0.025 mg. Consult your doctor or pharmacist for advice specific to your medications.
Is a 0.05 mg estradiol patch a low dose?
On the labels, 0.05 mg a day sits in the middle of the 0.025 to 0.1 mg range. Whether it is right for you depends on your symptoms and health, and your prescriber sets that.
Can I wear two 0.025 patches instead of one 0.05?
Only if your prescriber tells you to. The Climara label says to "wear only one system at any one time during the 7-day dosing interval." If you put on a second patch by mistake, see our guide on accidentally wearing two estradiol patches.
How can I tell what strength my estradiol patch is?
Check the mg per day printed on the pouch or carton, not the patch size. Some patches carry it too: the Mylan once-weekly label describes "Estradiol 0.025 mg/day (Once-Weekly)" printed on the patch. If the box and patch don't match what you expected, ask your pharmacist before you apply it.
Are generic estradiol patches the same dose as brand names?
Generics list the same mg per day, though size and look can differ. The Mylan twice-weekly label says it "is bioequivalent to Vivelle." Check with your pharmacist when a brand changes.
Is an estradiol patch safer at a lower dose?
For blood clots, a 2019 BMJ study of UK health records found transdermal (through the skin) estrogen was not linked to higher clot risk, whether the estradiol dose was 50 mcg or less or above 50 mcg. The 2022 menopause position statement says through-the-skin routes and lower doses "may decrease risk of VTE and stroke; however, comparative RCT data are lacking." (VTE means blood clots in the veins.) Clot risk is also only one of several risks, so dose choice stays with your prescriber. If you are weighing routes, see estradiol patch vs pill and estradiol gel vs patch.
This article is for informational purposes only and does not constitute medical advice. Always consult your doctor or pharmacist before making any changes to your medication routine.
Sources
- Climara prescribing information, DailyMed
- Estradiol transdermal system (Sandoz), DailyMed
- Estradiol transdermal system once-weekly (Mylan), DailyMed
- Estradiol transdermal system once-weekly (Zydus), DailyMed
- Menostar prescribing information, DailyMed
- Vivelle-Dot prescribing information, DailyMed
- Minivelle prescribing information, DailyMed
- Dotti prescribing information, DailyMed
- Lyllana prescribing information, DailyMed
- Estradiol transdermal system twice-weekly (Mylan), DailyMed
- Estradiol transdermal system twice-weekly (Zydus), DailyMed
- Climara Pro prescribing information, DailyMed
- FDA Drug Shortages: Estradiol (Alora) Patch
- MedlinePlus: Estradiol Transdermal Patch
- Ettinger B, et al. Effects of ultralow-dose transdermal estradiol on bone mineral density. Obstetrics & Gynecology, 2004
- The 2022 hormone therapy position statement of The North American Menopause Society. Menopause, 2022
- Vinogradova Y, et al. Use of hormone replacement therapy and risk of venous thromboembolism. BMJ, 2019
- FDA: HHS removes misleading FDA warnings on hormone replacement therapy (Nov 2025)
