🇺🇸 Fulvestrant injection in United States

44 US adverse-event reports

Safety signals — FAERS

Adverse reaction reports describe suspected side effects. A report does not mean the drug caused the event — co-medications, underlying disease and coincidence all contribute.

• Window: 20 April 2025 – 20 April 2026
• Total reports: 44

Most-reported reactions

1. Injection Site Pain — 7 reports (15.91%)
2. Fatigue — 5 reports (11.36%)
3. Malignant Neoplasm Progression — 5 reports (11.36%)
4. Neoplasm Progression — 5 reports (11.36%)
5. Dyspnoea — 4 reports (9.09%)
6. Nausea — 4 reports (9.09%)
7. Pain In Extremity — 4 reports (9.09%)
8. Platelet Count Decreased — 4 reports (9.09%)
9. Asthenia — 3 reports (6.82%)
10. Epistaxis — 3 reports (6.82%)

Source database →

Frequently asked questions

Is Fulvestrant injection approved in United States?

Fulvestrant injection does not currently have US marketing authorisation in our dataset.

Who is the marketing authorisation holder for Fulvestrant injection in United States?

Pfizer Inc. is the originator. The local marketing authorisation holder may differ — check the official source linked above.