Drugs Flashcards
Opiates : opium
- Morphine
- Codeine
- Heroin
Opiates: description
Narcotic analgesic
Addictive
Habit forming
Morphine: composition
Fits into receptor sites on neurons in the brain and spinal cord
Morphine:
Receptor site (similar drugs sit)
Difference between morphine and codeine is very small
Codeine
Prescription cough syrup
Enzyme (clieves off ether turns into morphine)
Converted to morphine
Heroine
Morphine and esters (not polar, no H-bonds. Esters)
100x easier to pass BBB
Very addictive
Synthetic opiates
Add addictive milder than morphine
Demerol
Shot
Synthetic opiate
Hydrocodone
Percodan
Percoset
OxyContin (10 x time release)
Synthetic opiates
Addiction
- Psychological dependence
- Physiological dependence
- Tolerance
Psychological dependence
Uncontrolled desire for drug
Physiological dependence
Body need the drug
Withdrawal
Leads to convulsions
More dangerous than drug
Tolerance
User increases dosage to get the same effect.
Body decreases number of receptor sites (defense against drug)
Cocaine is worse. Why
Dopamine
Decrease receptors
Depression