The term tachyphylaxis is used to describe desensitization that occurs very rapidly, sometimes with the initial dose. The term tolerance is conventionally used to describe a more gradual loss of response to a drug that occurs over days or weeks.
- 1 Is tachyphylaxis a tolerance?
- 2 What does drug tachyphylaxis mean?
- 3 What’s the difference between tolerance and desensitization?
- 4 What is tolerance in pharmacology?
- 5 What happens with tachyphylaxis?
- 6 What do you do for tachyphylaxis?
- 7 How common is tachyphylaxis?
- 8 What is metabolic tolerance?
Is tachyphylaxis a tolerance?
Tachyphylaxis (Greek ταχύς, tachys, “rapid”, and φύλαξις, phylaxis, “protection”) is a medical term describing an acute, sudden decrease in response to a drug after its administration; i.e. a rapid and short-term onset of drug tolerance. It can occur after an initial dose or after a series of small doses.
What does drug tachyphylaxis mean?
Tachyphylaxis is defined as a rapidly decreasing response to a drug following its initial administration. This decreased drug sensitivity, like the placebo effect, can occur with any drug.
What’s the difference between tolerance and desensitization?
Desensitization can occur with the initial dose of a medication, while tolerance typically happens with repeated doses.
What is tolerance in pharmacology?
A condition that occurs when the body gets used to a medicine so that either more medicine is needed or different medicine is needed.
What happens with tachyphylaxis?
Tachyphylaxis is a condition where people experience a sudden decrease in effectiveness after taking a medication. This change usually occurs very abruptly. When this happens, the medication stops working as well for them as it did before. People experiencing tachyphylaxis may notice some of their symptoms returning.
What do you do for tachyphylaxis?
Tachyphylaxis occurs when you have had continuous exposure to a drug, causing it to become ineffective for your body. The condition can be treated by withholding the medication for some time or increasing the dosage.
How common is tachyphylaxis?
Recently, the National Institute of Mental Health Collaborative Depressive Study reported that the rate of ADT tachyphylaxis was 25 percent.
What is metabolic tolerance?
Metabolic tolerance describes changes in efficiency or capacity to metabolize ethanol resulting in a decrease in the blood alcohol concentration following a given dose of alcohol. Functional tolerance refers to lessened response to alcohol independent of the rate of metabolism of alcohol.