If someone feels themselves becoming physically tolerant or dependent on the drug, they must speak to their doctor. A doctor can taper them off the prescription, or replace it with a less addictive medication for anxiety or seizure disorders. People who take Klonopin as prescribed can even build a tolerance to the drug. But for those who abuse the medication, they can build a tolerance very quickly, increasing the likelihood of addiction. Cutting back or quitting the drug when someone has built up a physical tolerance to the substance will result in withdrawal symptoms.