Other | Low Risk

estradiol + norethisterone acetate (Estalis continuous 50/140)

What to know about estradiol + norethisterone acetate — also sold as Estalis continuous 50/140, Estalis continuous 50/250: uses, side effects, interactions, and safety considerations for people taking it or caring for someone who is.

estradiol + norethisterone acetate (brand names: Estalis continuous 50/140, Estalis continuous 50/250) is classified as Low risk (1 risk points) by AllMeds. It is a S4 medication under the TGA in Australia. Hormone replacement therapy with minimal risk except for potential interaction with anticoagulants.

Key Takeaways

  • TGA Schedule: S4 in Australia
  • Risk level: Low (1 points)
  • PBS listed: Subsidised under the Australian Pharmaceutical Benefits Scheme

Scheduling and Classification

Jurisdiction Classification Status
Australia (TGA) S4 PBS listed

Risk Profile

Risk Level Low
Risk Points 1
CNS Depressant No
Respiratory Risk No

Hormone replacement therapy with minimal risk except for potential interaction with anticoagulants.

How estradiol + norethisterone acetate is regulated

estradiol + norethisterone acetate is overseen by medicines regulators in each country. The rules below explain how it's scheduled, what oversight applies, and what to discuss with your doctor or pharmacist before starting, changing, or stopping this medication.

Australia TGA / PBS / State Schemes

Classified as S4 under the Therapeutic Goods Administration (TGA).

Listed on the Pharmaceutical Benefits Scheme (PBS) for subsidised prescribing.

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Important: This page is general health information, not personal medical advice. If you have questions about your medication — including starting it, stopping it, changing the dose, or combining it with something else — speak with your doctor or pharmacist. For an emergency or suspected overdose, call your local emergency number or poison information service immediately. Information is drawn from regulator and clinical guideline sources (TGA, FDA, MHRA, NICE, PBS, CDC); see our methodology for details.