HRT Out of Stock? Your Options During a Shortage
Safe equivalent switches, how UK Serious Shortage Protocols work, and why running out never has to mean going without.
Part of the Complete Hormone Replacement Therapy Guide.
Key fact: Nearly every HRT product has a clinically equivalent alternative — running out does not need to mean going without, and a prescriber can arrange a like-for-like switch quickly.
UK HRT supply has been bumpy for several years — surging demand since 2021, a limited number of manufacturers, and global pressures on transdermal patch production have caused recurring shortages of popular products, with estradiol patches particularly affected in 2025–26. Frustrating as it is, running out does not need to mean going without: nearly every HRT product has a clinically equivalent alternative.
Can't Get Your Usual HRT?
Access Doctor's prescribers can switch you to an in-stock equivalent after a quick online review, with next-day delivery.
Check availability →First rule: don't just stop
Stopping HRT abruptly commonly brings symptoms back within days to weeks. If your usual product is unavailable, the right move is a like-for-like switch — same hormone, same dose, different brand or format — which a prescriber can arrange quickly.
Equivalent switches at a glance
| If this is short | Equivalent options |
|---|---|
| Evorel 50 patch | Estradot 50, Femseven 50, estradiol gel at equivalent dose (e.g. Oestrogel 2 pumps) |
| Estradot patch | Evorel equivalent strength, gel or spray |
| Oestrogel | Sandrena gel, Lenzetto spray, equivalent patch |
| Evorel Conti | Separate components: estradiol patch + progestogen (e.g. Utrogestan or Mirena already in place) |
| Utrogestan | Alternative progestogens per prescriber advice — do not drop the progestogen if you have a uterus |
Rough dose equivalence (prescriber-confirmed): a 50mcg patch ≈ 2 pumps of Oestrogel ≈ 1mg oral estradiol — individual response varies, so symptoms guide fine-tuning.
How the system responds
- Serious Shortage Protocols (SSPs): for listed products, UK pharmacists can substitute a specified alternative without a new prescription
- Pharmacist advice: pharmacies often know which local wholesalers have stock, or which brand is actually available this month
- Prescriber switch: the fastest reliable route — a short review updates your prescription to an in-stock equivalent
Online pharmacies can help here: stock differs from high-street availability, and a prescriber review plus dispatch can happen the same day. Access Doctor lists live availability across Evorel, Estradot alternatives, Oestrogel and tablet options.
If you have to bridge a gap
If you're truly caught without supply for a few days: symptoms may start returning but no harm is done by a short gap; restart as soon as you have stock (no need to re-titrate after days, unlike months); and never borrow someone else's different-dose product without advice.
Important if you have a uterus: If only your progestogen is short, contact a prescriber promptly — unopposed oestrogen for more than a brief period is the one genuinely important thing to avoid.
Switch to an In-Stock Equivalent
Our GPhC-registered pharmacist independent prescribers can update your prescription to an available alternative after a quick online review, with next-day delivery.
Check availability →Frequently Asked Questions
Why is HRT out of stock so often?
Demand has risen sharply since 2021 while manufacturing capacity — especially for transdermal patches — is concentrated among few suppliers. Individual products go short even when alternatives remain available.
Can my pharmacist swap my HRT without a new prescription?
Only where a Serious Shortage Protocol is active for that product. Otherwise a prescriber needs to amend the prescription — usually quick to arrange.
Is switching brands safe?
Yes — switching between products delivering the same hormone at equivalent dose is routine. You may notice minor differences (adhesion, skin feel) between patch brands.
What happens if I stop HRT suddenly for a week?
Some symptoms may return; there's no danger in a short gap and you can restart at your usual dose. Longer gaps may mean symptoms take weeks to settle again.
Should I stockpile HRT?
No — over-ordering worsens shortages for everyone. Keeping one month in reserve by reordering in good time is reasonable.
If your usual HRT is unavailable, Access Doctor's pharmacist independent prescribers can review you online and, where appropriate, switch you to an in-stock equivalent with discreet next-day delivery.
References
- Department of Health and Social Care. Serious Shortage Protocols. gov.uk
- British Menopause Society. HRT supply update statements. thebms.org.uk
- NICE. Menopause: identification and management (NG23). 2015, updated November 2024. nice.org.uk
Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment. In a medical emergency, call 999.