Contraindicate (verb)

To indicate that something is not advisable or should not be done, especially because of a risk of harm.

Origin:

Early 18th century: from contra- "against" + indicate, on the model of french contre-indiquer.

Examples:

1. Certain medications contraindicate the use of alcohol.
2. The doctor said that my health condition contraindicates me from participating in the marathon.
3. The patient's history of allergies contraindicated the use of that medication.
4. The results of the tests contraindicate the surgery as the risk of complications is high.
5. The doctor said that the pregnancy contraindicates her from traveling by plane.