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opioid lecture
na
9
Medical
Graduate
08/28/2013

Additional Medical Flashcards

 


 

Cards

Term
opiate mechanism
Definition
inhibit neurons by activating K+ channels and inhibiting Na+ channels
Term
Morphine
Definition
  • trade: 
  • half-life: 
  • MoA: mu receptors in brain. ("mu" refers to morphine after all)
  • Elim: 
  • Rx: analgesic to relieve pain. STRONG
  • tox: 
    -Constipation (mu-rec myenteric plexus)
    - Addiction (psychological and physiological)
    -Tolerance 
  • Contras: 

 

Term
morphine drug interactions
Definition

-triprolidine, CNS depressant, may increase toxic effects due to additivity 

 

-Trovafloxacin, an antibio, levels may be reduced when used with morphine

 

-Rifampin, an AB, decreases effect of morphine.

 

- avoid alcohol, take w food

Term
Methadone
Definition
  • trade: 
  • half-life: 
  • MoA: mu receptors in brain, NMDA, delta
  • Elim: 
  • Rx: analgesic to relieve pain, depressant action on cough center, treatment for opiod dependance. STRONG
  • tox:  
  • Contras: 

 

Term
hydrocodone
Definition
  • trade: 
  • half-life:
  • MoA: similar to morphine. mu and delta agonist. 
  • Elim:
  • Rx: treat moderate or severe pain. treat hacking cough due to bronchitis. MODERATELTY STRONG. 
  • tox:

 

Term

mech of mu receptor

 

Definition

1. morphine (or other) binds to mu rec on post syn mem of neuron

2. inhibits GABA release from neuron

3. GABA normally inhibits DA release from another neuron. Therefore, DA release increases.

Term
Codeine
Definition
  • trade: 
  • half-life:
  • MoA: converted to morphine in liver. acts on mu-receptors
  • Elim:
  • Rx: analgesic to relieve mild/moderate pain. cough, IBS, diarrhea, narcolepsy. MODERATELY STRONG.
  • tox: euphoria, itching, urinary retention, depression, constipation, ED

 

Term
Meperidine
Definition
  • trade: 
  • half-life:
  • MoA: mu-rec, kappa-rec, K+ channels, muscarinic rec, 
  • Elim:
  • Rx: analgesic to relieve mod/severe pain. also for antispasmotic effects. STRONG
  • tox: serotonin syndrome--xs serotonin in CNS and periph

 

Term
Pentazocine
Definition
  • ??? -- lecture notes suck
  • trade: 
  • half-life:
  • MoA: agonist-antagonist!! mu-antagonist, k-agonist, d-agonist
  • Elim:
  • Rx: 
  • tox:

 

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