marstacimab

INN (International Nonproprietary Name)

🇺🇸 Also approved in the US (FDA)

HYMPAVZI — PFIZER INC, approved 2026-06-05 (BLA761369).

Most reported adverse events (US / FAERS)

47 reports across the top reactions. These are spontaneously reported events from the FDA Adverse Event Reporting System — they reflect reporting volume, not incidence or frequency, and a report does not mean the drug caused the event.

haemarthrosis

10

device failure

4

haemorrhage

4

arthralgia

3

contusion

Medicines containing this active substance

1 medicines

Hympavzi

Authorised

🇺🇸 Also approved in the US (FDA)

HYMPAVZI — PFIZER INC, approved 2026-06-05 (BLA761369).

Most reported adverse events (US / FAERS)

47 reports across the top reactions. These are spontaneously reported events from the FDA Adverse Event Reporting System — they reflect reporting volume, not incidence or frequency, and a report does not mean the drug caused the event.

haemarthrosis

10

device failure

4

haemorrhage

4

arthralgia

3

contusion

3

device defective

3

drug dose omission by device

3

epistaxis

3

alanine aminotransferase increased

2

aspartate aminotransferase increased

2

brain fog

2

device delivery system issue

2

drug ineffective

2

fall

2

fracture

2