Opiod Analgesics Flashcards

1
Q

Family receptors and protein coupled of opioids

A

u, k, d ▶️ Gi protein coupled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Mechanism of action of opioids

A
  • Gi coupled proteins in presynaptic ▶️ ⬇️ Ca influx ▶️ ⬇️ P substance (pain neurotransmitter)
  • Gi coupled proteins in postsynaptic ▶️ ⬆️ K influx ▶️ hyperpolarization (⬇️ pain signal)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Important adverse effect of meperidine. Why could it happen?

A
Serotonin syndrome (also seizures)
Cytochrome P450 ▶️ normeperidine (serotonin uptake inhibitor)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Classic triad of acute opioid toxicity

A

Pinpoint pupils
Respiratory depression
Coma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Treatment opioid withdrawal

A

Supportive
Methadone
Clonidine (⬇️ SANS-like symptoms)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Used for decrease craving for alcohol

A

Naltrexone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly