Dependence

Definition

Dependence is a condition in which a person requires a drug to function normally. Abrupt discontinuation can lead to withdrawal symptoms.

5 Must Know Facts For Your Next Test

1. Dependence can be physical, psychological, or both.
2. Physical dependence often involves tolerance, where increasing doses are needed to achieve the same effect.
3. Withdrawal symptoms vary depending on the drug but can include anxiety, seizures, and flu-like symptoms.
4. Psychological dependence is characterized by cravings and compulsive use despite harmful consequences.
5. Certain anticonvulsant drugs used for epilepsy treatment can lead to dependence if not monitored properly.

Review Questions

• What are the differences between physical and psychological dependence?
• How does tolerance relate to physical dependence?
• What are some common withdrawal symptoms associated with drug dependence?

Related terms

Tolerance: A condition in which higher doses of a drug are required to achieve the same effect.

Withdrawal: Symptoms that occur when a dependent person stops taking a drug.

Addiction: A chronic disorder characterized by compulsive drug seeking and use despite adverse consequences.