Make a treatment inadvisable.

Roget 616: dissuade, dehort^†, cry out against, remonstrate, expostulate, warn, contraindicate.    disincline, indispose, shake, stagger; dispirit; discourage, dishearten; deter; repress, hold back, keep back etc. (restrain) 751; render averse etc. 603; repel; turn aside etc. (deviation) 279; wean from; act as a drag etc. (hinder) 706; throw cold water on, damp, cool, chill, blunt, calm, quiet, quench; deprecate etc. 766.    disenchant, disillusion, deflate, take down a peg, pop one's balloon, prick one's balloon, burst one's bubble; disabuse (correction) 527.1. ... show more