🇺🇸 MEDI-551 in United States

9 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: 28 March 2025 – 28 March 2026
• Total reports: 9

Most-reported reactions

1. Accidental Overdose — 1 report (11.11%)
2. Central Nervous System Infection — 1 report (11.11%)
3. Herpes Zoster — 1 report (11.11%)
4. Neuromyelitis Optica Spectrum Disorder — 1 report (11.11%)
5. Neutrophil Count Decreased — 1 report (11.11%)
6. Pneumonia — 1 report (11.11%)
7. Post Cardiac Arrest Syndrome — 1 report (11.11%)
8. Progressive Multifocal Leukoencephalopathy — 1 report (11.11%)
9. Toxicity To Various Agents — 1 report (11.11%)

Source database →

Frequently asked questions

Is MEDI-551 approved in United States?

MEDI-551 does not currently have US marketing authorisation in our dataset.

Who is the marketing authorisation holder for MEDI-551 in United States?

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