Pharmacodynamics
- Created by: Amy
- Created on: 17-03-17 13:49
Other questions in this quiz
2. A selective serotonin reuptake inhibitor exerts its effects by:
- Blocking the action of the serotonin transporter and inhibiting reuptake of serotonin in the pre-synaptic neurone.
- Blocking the action of the serotonin transporter and increasing reuptake of serotonin into the pre-synaptic neurone.
- Blocking the action of the serotonin transporter and increasing reuptake of serotonin into the post-synaptic neurone.
- Blocking the action of sodium channels and increasing reuptake of serotonin in the pre-synaptic neurone.
3. Pharmacodynamics can be defined as:
- A measure how much drug is absorbed
- How the drug exerts its effect on the body
- How the kidneys and liver handle the drug
- How the body handles the drug
4. Local anaesthetic drugs like lidocaine are ion channel blockers. They prevent the sensation of pain by blocking propagation of nerve impulses. This type of drug acts mainly by:
- Inhibitng calcium influx through calcium channels in the nerv cell membrane.
- Inhibiting potassium influx through sodium channels in the nerve cell membrane
- Inhibiting sodium influx through sodium channels in the nerve cell membrane.
- Increasing sodium influx through sodium channels in the nerve cell membrane.
5. A competitive enzyme inhibitor:
- Blocks the active site of the enzyme
- Causes a change in shape of the enzyme
- Increases the binding of the substrate to the enzyme
- Binds to a site other than the active site
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