different between dechallenge vs rechallenge

English

Etymology

de- +? challenge

Verb

dechallenge (third-person singular simple present dechallenges, present participle dechallenging, simple past and past participle dechallenged)

1. (medicine, pharmacology) To stop administering a drug to a patient, to see whether its suspected effects cease to occur.

Related terms

• rechallenge

English

Etymology

re- +? challenge

Verb

rechallenge (third-person singular simple present rechallenges, present participle rechallenging, simple past and past participle rechallenged)

1. To challenge again.
2. To challenge in return.
3. (medicine, pharmacology) To try a therapeutic pharmaceutical drug, suspected allergen, or medical treatment on a patient a second or subsequent time, to see if the suspected effects of the treatment occur again. This is typically performed to confirm allergic or adverse reactions to allergens or medications, but may also be used to confirm beneficial treatments or to retry a probable beneficial treatment which did not appear to be effective previously.

Noun

rechallenge (plural rechallenges)

1. A challenge made in return.
2. (medicine, pharmacology) The event of a rechallenge as above.