Tolerance occurs when the body gets used to taking a drug, and higher doses are needed to produce the same effects. People taking dexamphetamine may notice a decrease in the medicine’s effects when the body becomes used to taking it.
Dexamphetamine can produce physical and psychological dependence.
- Physical dependence means the body experiences unpleasant side effects if the drug is not taken.
- Psychological dependence means that a person thinks they need the drug to be able to function properly.
Regular users who stop taking dexamphetamine suddenly after using it for a long time may experience withdrawal symptoms such as fatigue, increased appetite or depression. When a decrease in dexamphetamine use or dosage is required, it is important that this is done gradually under the supervision of a doctor. This will reduce the likelihood of withdrawal symptoms occurring.