How can a Cross-tolerance to a drug be defined?

If you are prescribed a drug, the pharmacist will often write on the prescription what items the patient should not take with this drug. Often, alcohol and other medications should not be mixed with this drug. This means that the patient should not take the drug while drinking alcohol or taking other drugs.

However, there are times when another drug may be given with this drug. One time is if a physician asks you to do so. Another time, a nurse may give another drug to someone who is already taking a drug because that drug may reduce the response of another drug.

Another drug may need to be reduced because the person took too much of it or the person had an allergic reaction to the drug.

One drug reduces response to another drug.-rationale: cross-tolerance occurs when a drug with a similar action causes a decreased response to another drug. a drug that can prevent withdrawal symptoms from another drug describes cross-dependence. cross-tolerance isnt an allergic reaction to a class of drugs. a drugs ability to increase the potency of another drug describes potentiating effects.client needs category: physiological integrityclient needs subcategory: pharmacological and parenteral therapiescognitive level: knowledgereference: craven, r.f., and hirnle, c.j. fundamentals of nursing: human health and function, 5th ed. philadelphia: lippincott williams & wilkins, 2007, p. 1200.