Mastering Drug Mechanisms

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Questions and Answers

Which mechanism of drug action involves the drug serving as a precursor to a neurotransmitter?

  • Mechanism 3
  • Mechanism 4
  • Mechanism 2
  • Mechanism 1 (correct)

Which mechanism of drug action inhibits the synthesis of neurotransmitters by inactivating the enzymes responsible for synthesizing precursor chemicals?

  • Mechanism 1
  • Mechanism 3
  • Mechanism 4
  • Mechanism 2 (correct)

Which mechanism of drug action prevents the storage of neurotransmitters in synaptic vesicles?

  • Mechanism 3 (correct)
  • Mechanism 4
  • Mechanism 1
  • Mechanism 2

Which statement accurately describes the mechanism of action of Narcan?

<p>Narcan inhibits the effects of opioids by blocking the opioid receptors (A)</p> Signup and view all the answers

What happens to the patient immediately after receiving Narcan?

<p>The patient goes into withdrawal due to blocked opioid receptors (D)</p> Signup and view all the answers

How does Narcan differ from drugs that act on postsynaptic receptors?

<p>Narcan does not require presynaptic machinery to take effect (D)</p> Signup and view all the answers

Which mechanism slows down the movement of neurotransmitter-carrying synaptic vesicles towards the membrane?

<p>4 (D)</p> Signup and view all the answers

Which mechanism stimulates the autoreceptor to send a stop signal for the release of neurotransmitters?

<p>5 (D)</p> Signup and view all the answers

Which mechanism blocks the autoreceptors, preventing them from detecting levels of neurotransmitters in the synaptic cleft?

<p>8 (A)</p> Signup and view all the answers

Which mechanism blocks the reuptake of a neurotransmitter, leading to its accumulation in the synaptic cleft?

<p>9 (C)</p> Signup and view all the answers

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