Agents
MOA/Pharmacology
Effects
Use
100
List the 2 classes that have antagonist agents:

1) Alpha2 

2) Opioid

100

Antagonists work in what way:

they displace the agents from the receptor sites

100

When reversing alpha2-agonists, which 2 main side effects are we looking to reverse?

1) cardiovascular 

2) sedative

100

True/False: reversal agents work on agents other than what they are labeled for

False

200

List the reversal agent for opioid agents:

Naloxone

200

True/False: antagonists are dose dependent

True

200

When using opioid antagonists - which agent is likely unaffected when causing respiratory depression?

Buprenorphine

200

Alpha2-antagonists reverse both the _____ and the _____ qualities of the agents use:

detrimental and beneficial

300

List the 3 reversal agents available (and their agents) available for apla2-agonists:

1) Yohimbine = Xylazine

2) tolazine = Xylazine

3) Atipamezole = Dexmedetomidine

300

Naloxone acts by binding to which receptors:

mu, kappa and sigma

300

Which receptor does buprenorphine bind to?

Mu

300

Unlike alpha2-antagonists; opioid antagonists are very useful when reversing ____ in emergencies:

overdoses

400

What is the antagonist that is used to reverse opioids used on wild animals such as etorphine:

Diprenorphine

400

Naloxone acts as quickly as: (minutes)

2 minutes

400

When using alpha2-antagonists, what is of concern when reversing patients?

rapid reversal - excitement and aggression

400

Alpha2-antagonist agents are dosed expressed using:

ratios: 10:1 (0.1mg/kg or 1/10th the antagonist dose)

500

List 2 reasons that antagonists are used:

1) to reverse undesirable side effects of an agent

2) a procedure is over

500

Naloxone has a duration of action of: (minutes)

30-60 minutes

500

What is the main concern when reversing any agent?

the reversal of the analgesic qualities

500

When using/administering opioid antagonists, what is the recommended method of dosing?

titrated based on admin time of agent