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Real Life Pharmacology - Pharmacology Education for Health Care Professionals

Diazepam Pharmacology

Real Life Pharmacology - Pharmacology Education for Health Care Professionals

Eric Christianson, PharmD; Pharmacology Expert and Clinical Pharmacist

Education, Health & Fitness, Medicine

5716 Ratings

🗓️ 27 February 2020

⏱️ 15 minutes

🧾️ Download transcript

Summary

Diazepam has numerous dosage forms. There are rectal, injectable, and oral formulations of the drug that are commonly used in clinical practice.



Diazepam has 2 major metabolic pathways. It is broken down primarily by CYP3A4 and CYP2C19, leaving open the potential for numerous drug interactions. I discuss this further in the podcast.



Diazepam is on the Beers list because it has a tendency to accumulate in the geriatric patient population and cause adverse effects like sedation, confusion, and falls.



Respiratory depression, coma, and death are significantly more likely in overdose situations where opioids are used in combination with benzodiazepines like diazepam.

Transcript

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0:00.0

Hey all, welcome back to the Real Life Pharmacology podcast. I'm your host, Eric Christensen.

0:06.0

Thank you all so much for listening today. To track me down is best probably on LinkedIn,

0:12.0

Eric Christensen, FarmD, BCGP, BCP, Bcps, also, real-life Pharmacology.com, definitely go subscribe.

0:20.8

You can get a free 31-page PDF, a great little study guide on the top 200 drugs for students,

0:29.5

young healthcare professionals, where I lay out the most important clinical pearls that you're

0:34.3

going to see likely on your pharmacology and board exams as well as in real

0:39.5

life. So go check that out for sure. Let's get into the drug of the day. Today I'm going to cover

0:46.4

diazepam, which is a benzodiazepine. The brand name of this medication is Valium.

0:55.3

And from a mechanism of action standpoint, this drug binds benzodiazepine receptors.

1:02.3

So that's real original, how they named those receptors.

1:05.8

Those receptors located in neurons.

1:09.1

And ultimately, that binding, that action can lead to an increase in the effects

1:16.5

of GABA now what's GABA GABA is an inhibitory neurotransmitter which can alter flow of

1:25.6

chloride ions to and from the cells.

1:30.2

And this can result in hyper-polarization,

1:34.3

and that can ultimately lead to a reduction in basically cell excitability.

1:42.3

So end result, reduced excitability of cells so we don't have action

1:48.4

potentials and basically transmission of signals through neurons, cross neurons in the brain

1:57.4

is most likely where this is going to have an impact.

2:02.1

So thinking about that,

2:04.4

we're trying to basically slow people down,

2:07.7

reduce excitability,

...

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