prophylactically

American  

[proh-fuh-lak-tik-lee, prof-uh-] / ˌproʊ fəˈlæk tɪk li, ˌprɒf ə- /

adverb

1. preventively or protectively, as against a disease or infection.

   You don't need to be given antibiotics prophylactically unless your symptoms meet certain criteria.

---

Etymology

Origin of prophylactically

prophylactic ( def. ) + -ally ( def. )

Example Sentences

Both antivirals can also be prescribed if you’ve been exposed to the flu and want to take it prophylactically.

From The Wall Street Journal

Authorized by the FDA for emergency use, it’s given prophylactically and can help recipients prevent COVID-19 if they are later exposed to an infected person.

From Los Angeles Times

In many countries they are distributed without prescriptions and administered in factory farming: prophylactically to prevent infections and enhance performance.

From Science Daily

The investigational monoclonal antibody could potentially be used prophylactically to prevent or better control EBV infections in such cases, the investigators note.

From Science Daily

They are used prophylactically, with health care workers aware that their patients are vulnerable to infection due to poor conditions, and may be unable to finish a full course of antibiotics or receive follow-up care.

From Salon