00:00
Now let's look at Fentanyl. Look back at that chart in your
downloadable notes.
00:05
Compare the potency of oral morphine and fentanyl. Remember
what it was?
That's right, fentanyl IV is 100 times more potent than
morphine. That is impressive.
00:19
Now, fentanyl doesn't come just IV but when it does, it is a
killer pain reliever kind of drug, right?
A hundred times more potent than oral morphine.
00:28
You can also get fentanyl transdermal. Now once you --
that's a patch.
00:33
Once you put the patch on your patient, you wanna put it on
clean, dry, intact skin.
00:38
I'll take about 24 hours for that to really hit its peak and
it'll last for another 48 hours
and then that patch needs to be changed.
00:47
Really important patient education point:
take the old patch off before you put the new patch on.
Okay, that's really important.
00:56
You don't want patients to have more than one transdermal
fentanyl patch on at a time.
01:01
So take the old patch off first then put the new patch on
and they shouldn't experience any problem in their pain
relief
but we've had patients come in before with other transdermal
medications
that just kept putting patches on and they didn't take the
old ones off.
01:18
So, this transdermal method is really only appropriate for
persistent and severe pain.
01:25
These are people who've been on other opioids and they built
up a tolerance
and it's just not working for them anymore. They're not
getting the pain relief they need.
01:32
That's who's the best type of candidate for a transdermal
fentanyl patch.
01:37
Now we also give it transmucosal. These come in like
lollipops.
01:40
Some of the special pharmacies in the States can put
fentanyl in a sucker or a lollipop.
01:46
This is great for somebody who doesn't have IV access
and we can't really get this to them but we can put it
underneath their tongue
and they can suck on it and they'll get that kind of pain
relief.
01:55
We can also use buccal tablets, sublingual spray or tablets.
01:59
These are great for people that don't IV access and they
still need the pain relief.
02:04
We can give it intranasal. I've never got to do this in my
career but it is available.
02:08
It's intended for breakthrough cancer pain for patients who
are already getting other opioids.
02:14
They use the intranasal route to help break through pain.
02:18
Now this is Meperidine. This is not one of my favorite
medications
and thankfully, it is no longer a first line pain
medication.
02:27
You only use it in the short term because if you use it for
more than 48 hours,
it can lead up to a buildup of this toxic metabolite called
normeperidine.
02:36
Now, this metabolite can build up and cause seizures so only
use this drug
if you're gonna use it for short-term.
02:45
Greater than 48 hours, you end up with this toxic metabolite
that can lead to seizures.
02:50
You also don't wanna use this with MAOIs.
02:53
And I know you've heard me say this in the rest of our
series, MAOIs don't play well with other medications
but if they're given with meperidine, it causes a
life-threatening serotonin syndrome.
03:05
So MAOIs are used for depression.
03:09
It's a really old medication but it doesn't play well with
others
and by that I mean it just doesn't go well with any other
medication.
03:17
There's multiple drug-to-drug interactions
but particularly the one if you give MAOIs and meperidine,
it can be life-threatening.
03:26
Now, Codeine is a different medication. Take a back and look
at that chart.
03:31
It's still an opioid, still an opioid agonist but I want you
to look and compare codeine to morphine.
03:38
So codeine's a moderate to strong opioid. We usually give it
PO, that means by mouth.
03:44
Just Latin for 'per os'. But liver takes whatever dose we've
given the patient
and it converts 10% of it into morphine. Pretty cool.
03:53
So when someone takes codeine, 10% of that dose is converted
into morphine in the liver.
03:59
Now you can give codeine alone or give it with something
else like a non-opioid.
04:04
So we often give codeine with aspirin or we give it with
acetaminophen which you may know as Tylenol.
04:10
Now combination therapy provides better pain relief than
just monotherapy.
04:16
So believe it or not, take an opioid which you saw, aspirin
is on the chart,
it doesn't have that much pain relief compared to morphine
or codeine.
04:26
However, when you take codeine and you put it with something
like an aspirin or an acetaminophen,
you have much better pain relief than if you just give
codeine by itself. It's kinda cool.
04:37
Oxycodone also is similar to codeine and we give it by
mouth.
04:42
It's available in combination with aspirin, acetaminophen,
or ibuprofen.
04:47
So you often see oxycodone given with something else that's
a non-opioid and it's much more effective.
04:54
Here's the bad news though, if you are taking oxycodone even
with tylenol, aspirin,
ibuprofen, and you're taking any one of these medications we
have listed there:
carbamazepine, phenytoin for seizures, or rifampin which is
an antibiotic,
it's not gonna work as well. These three medications lower
oxycodone levels and pain relief.
05:16
So those are not a good combination.
05:19
Now there is a problem in the United States and we're trying
to work on fixing it
but oxycontin is the name of controlled release oxycodone.
05:28
I mean, it's gonna have a sustained release. It's gonna
release over a period of time.
05:33
How it used to work is we dose it every 12 hours for 24-hour
pain relief.
05:37
But here's something that people figured out: they begin
crushing that medication.
05:42
Any time you crush a sustained release medication,
instead of getting the dose as you should, over 12 hours of
time, if you crush it and ingest it, boom!
You get that full 12-hour dose immediately.
05:58
So that's why oxycodone became a risk for overdose.
06:02
The old formulation of oxycodone was called Oxycontin OC.
06:06
It was easy to crush and they dissolved it and you can snort
it, ingest it,
or even inject it for even faster results.
06:14
This put people at a huge risk for overdose and for death.
06:18
So the newer formulation is called Oxycontin OP.
06:23
Now this was pretty smart, what they came up with to try to
address this problem.
06:27
They said, "We've got to do something to discourage people
from crushing these sustained release medications, snorting
them, ingesting them, or injecting them."
So Oxycontin OP is much more difficult to crush so it's not
even easy to crush
but even if you figured out how to do that, it won't
dissolve in water or alcohol very easily.
06:49
In fact, it makes this big glob so gummy glob thing that
there's no way you could draw that into a syringe.
06:57
So it makes it much more difficult for people to do that.
07:00
Now, not that someone won't figure out a way to do it
but it was the responsible thing to do that know we have
this problem
and we do have patients that need sustained release
oxycontin
but we knew we have this problem and they figured out a way
to make it more difficult for people to overdose on that
med.
07:17
Hydrocodone is one of the most common prescriptions overall
in the United States.
07:22
and you take it orally as an antitussive or cough
suppressant.
07:27
Man, a cough syrup with hydrocodone is usually pretty
effective.
07:30
People also use hydrocodone for pain relief. Now,
hydrocodone isn't given by itself.
07:37
It's always given with something else.
07:39
If you're taking hydrocodone for pain, then we give it with
acetaminophen or ibuprofen.
07:45
If you're taking to relieve a cough, then we give
hydrocodone plus antihistamines and nasal decongestants.