Fondaparinux: uses, dosing, side effects & brands
Fondaparinux is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Injectable
- Sold as
- Fondaparinux Sodium
- Prescription?
- Prescription only
- Generic available?
- Yes
- What the pharmacy pays
- about $42 per ml — not your price
Every fondaparinux product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Fondaparinux Sodium.
How long fondaparinux keeps
No fondaparinux label we read sets a separate limit for after opening, but they do specify how it must be stored — and the stability behind any date assumes those conditions.
Does fondaparinux expire? The in-use limits and storage rules from its labelsWhat people report to the FDA about fondaparinux
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 887 reports naming fondaparinux, and the FDA flagged 85% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- thrombosis48 reports
- pulmonary embolism45 reports
- heparin-induced thrombocytopenia40 reports
- haemoglobin decreased38 reports
- diarrhoea36 reports
- abdominal pain35 reports
- anaemia35 reports
- deep vein thrombosis35 reports
Read these as a signal, not a rate. A report does not mean fondaparinux caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.
Source: openFDA drug/event (FAERS), retrieved July 25, 2026.
Related calculators
Frequently asked questions
Can you take fondaparinux with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run fondaparinux against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does fondaparinux come in?
Across the brands we track, fondaparinux is currently marketed as injectable, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic fondaparinux?
Yes. Our catalog lists 1 generic fondaparinux product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Fondaparinux: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/fondaparinux
- MLA
- “Fondaparinux: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/fondaparinux.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for fondaparinux on DailyMed (NIH) ↗.