contraindicate

con·tra·in·di·cate -cat·ed, -cat·ing.
–verb (used with object), Medicine/Medical.
to give indication against the advisability of (a particular or usual remedy or treatment).

Origin: 1660–70; prob. back formation from contraindication.

Probable mucosal damge may contraindicatethe use of gastral lavage

by Troy D. F. November 30, 2007

Contraindication

A word commonly used in the medical field to establish that a drug should not be used because it will cause more harm then benefit to a patient.

Penicillin is a contraindication for therapy if you are allergic to it.

by MR Contraindication January 06, 2011