Which injection sites are recommended for the marstacimab Hympavzi pre-filled pen?

Recommended subcutaneous sites for the marstacimab Hympavzi pre-filled pen are the abdomen, at least 5 cm from the navel, and thigh; other locations are acceptable if required, but buttock injections require a caregiver or healthcare professional, sites should be rotated, and bony, bruised, red, tender, hard, scarred or stretch-marked areas avoided.