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Cheapest Drug Alternatives

Pick a drug to see the lowest-cost options in the same therapeutic class, ranked by average US Medicare Part D spend per dose (calendar year 2024). In England the NHS charge is a flat £9.90 either way.

What are the cheapest alternatives to common drugs?

For a drug, the most useful "cheaper alternative" is usually another medicine in the same therapeutic class. These pages rank same-class options by average US Medicare Part D spending per dose (calendar year 2024, CMS) so the lowest-cost option is visible. In England the NHS patient charge is the same £9.90 per item whichever you take. Switching is a clinical decision, not a cost one — information only, not medical advice.

Source:CMS Medicare Part D Spending by Drug·as of calendar year 2024updated yearly (last: )

Not medical advice. The figures on this page are drawn unchanged from public government datasets for general information only. They are not price quotes and not a substitute for professional advice. What you actually pay depends on your country, pharmacy, insurance, manufacturer, dose and region. Never start, stop or switch a medication on cost grounds without a licensed pharmacist or clinician.

The US figure is Medicare Part D PROGRAM spending per dosage unit (in US dollars), not a cash price; the UK figure is the patient's flat NHS charge per item (in pounds). They measure different things in different currencies and are shown side by side, never converted into one another.

Drug families and their cheapest option

Each family lists its lowest-cost member by US per-dose spend.

  • GLP-1 receptor agonists

    3 drugs · cheapest by US spend: Ozempic at $306.48/dose

  • Statins (cholesterol-lowering)

    4 drugs · cheapest by US spend: Simvastatin at $0.111/dose

  • Blood thinners (anticoagulants & antiplatelets)

    4 drugs · cheapest by US spend: Warfarin Sodium at $0.1367/dose

  • SGLT2 inhibitors

    2 drugs · cheapest by US spend: Farxiga at $18.31/dose

  • Diabetes medications

    11 drugs · cheapest by US spend: Metformin HCl at $0.0564/dose

  • Antidepressants

    9 drugs · cheapest by US spend: Citalopram HBr at $0.1178/dose

  • Proton pump inhibitors (PPIs)

    2 drugs · cheapest by US spend: Omeprazole at $0.1716/dose

  • Opioid pain relievers

    4 drugs · cheapest by US spend: Tramadol HCl at $0.1109/dose

  • Antibiotics

    8 drugs · cheapest by US spend: Amoxicillin at $0.1532/dose

  • Blood pressure medications

    10 drugs · cheapest by US spend: Hydrochlorothiazide at $0.0584/dose

Find cheapest alternatives for a drug

Frequently asked questions

How is "cheapest alternative" decided here?
By the lowest average US Medicare Part D spending per dosage unit (CMS, calendar year 2024) among drugs in the SAME therapeutic class. It is a cost ranking of real figures, not a clinical recommendation — different drugs in a class are not always interchangeable.
Does a cheaper alternative save money in England?
Not at the pharmacy counter: England charges a flat £9.90 per NHS item regardless of the drug, so for the patient the cost is the same either way (and prescriptions are free in Scotland, Wales and Northern Ireland). The cost gap is a US phenomenon.
Should I switch to save money?
Never switch a medication on cost grounds alone. Whether an alternative is appropriate depends on your condition, response and other medicines — a decision for a licensed pharmacist or clinician.

Wondering about a lower-cost option?

A GeraClinic clinician can review whether a different medicine in the same class is appropriate for you — online, without travelling to a clinic.

Talk to a GeraClinic clinicianAll medication costs

Contains public sector information published by U.S. Centers for Medicare & Medicaid Services (CMS) and licensed under the U.S. Government Works / Public Domain. Source: CMS Medicare Part D Spending by Drug (calendar year 2024, published 2026-06-25).

Contains public sector information published by NHS Business Services Authority (NHSBSA), NHS England & DHSC and licensed under the Open Government Licence v3.0. Source: NHS prescription charges (England) — NHSBSA / NHS England / DHSC (2026/27 (from 1 April 2026), published 2026-04-01).