Define an opioid agonist, antagonist, mixed agonist-antagonist, and partial agonist. Give an example of each and how they are therapeutically useful.

Can you please explain the actions of eicosanoids.

Why are anticholinergics a potential problem for elderly subjects?

Briefly describe the proposed mechanism of CNS depression by benzodiazepines. Give examples of most commonly used benzodiazepines. What side effects or clinical problems have to be monitored?

A patient is taking codeine as two 15 mg tablet(s) by mouth every 24 hours. The prescribing physician wants to change the patient to an equivalent dose of oxycodone taken by mouth. Assume 200 mg of codeine is equianalgesic to 20 mg of oxycodone. What is the daily oral dose of oxycodone that will provide an equivalent analgesic effect to the amount of codeine the patient is currently taking?Round the answer to one decimal place.

What are the two main ways in which drugs can interact with neurotransmitter systems?

How does the drugs can be classified based on their effects on receptors: full agonist, partial agonist, inverse agonist, antagonist (competitive, non-competitive, etc.).

Can drugs interact with several neurotransmitters at once, and how would they do so?

Would you consider caffeine a neurotransmitter? Provide reasons for your claim.

Fentanyl is an opioid similar to morphine, except, according to the CDC, it is up to 50 times stronger than heroin and 100 times stronger than morphine.  Discuss the effects of fentanyl on specific receptors and how the transmission of action potentials is altered.  Be sure to focus only on how the action potential transmission is impacted by the drug.  Be sure to provide an APA citation.