Pharmacology - Drug Abuse and Marijuana (Exam 6) Flashcards
Preoccupation with the use and procurement of a drug. The individual feels that the drug is needed for their continued well being.
Compulsive drug use
behavioral pattern of compulsive drug use
Addiction
Natural reward examples
Food
Sex
Water
Nurturing
The reward pathway in the brain involves which neurotransmitter?
Dopamine
Altered physiological state as a result of chronic drug use
Physical dependence
Degree of physiological dependence can be determined by the severity of the?
Withdrawal
Withdrawal intensity is related to the degree of altered function. Name 3 things that cause this
1) high doses
2) frequent administration
3) long periods of use
More drug is needed to elicit the same response
Tolerance
3 types of tolerance
- Metabolic/pharmacokinetic
- Cellular/pharmacodynamic
- Reverse/sensitization
Less drugs get to the site of action
Metabolic tolerance
Same amount of drug gets to the site of action but the response is reduced
Pharmacodynamic/cellular tolerance
Describe the 2 types of reinforcements
(+): drug induces euphoria/pleasure
(-): drug terminates pain, anxiety
Examples of secondary reinforcers
Sight of the drug, environment in which drug was taken
Name some opioids (5)
Heroin
Morphine
Naltrexone
Methadone
Buprenorphine
MOA of opioids
Opioid receptor agonist
(opioids receptors = GPCR’s)