Chapter 19: Over-the-Counter Drugs & Mental Health

Welcome to Last Minute Lecture.

This free chapter overview is designed to help students review and understand key concepts.

These summaries supplement not replaced the original textbook and may not be redistributed or resold.

For complete coverage, always consult the official text.

Welcome back to the Deep Dive.

If you are a regular listener, you know, we usually take, you know, a stack of articles, maybe a history book or some tech journals, and we try to find the narrative thread.

But today we're doing something a little different.

We are shifting years into what we like to call our last minute lecture series.

That's right.

We know a significant portion of our audience is actually in school, specifically nursing school.

And sometimes you just need to get through a chapter without falling asleep face first into the textbook.

So consider us your study buddies for the next hour or so.

We have the big red book open in front of us.

We are tackling Chapter 19 of Psychiatric Nursing, the seventh edition.

It's a dense one, but it's incredibly important.

And the chapter title is On the Surface, A Little Misleading.

It's called Over the Counter Drugs.

No, I have to admit, when I first saw that on the outline, I kind of groaned.

I thought, okay, we're going to talk about aspirin, maybe some Tylenol, maybe cough syrup.

It sounded

a bit dry.

It does sound really generic.

But in the context of psychiatric nursing, and specifically this textbook, Over the Counter is really code for something much more complex.

We aren't talking about headaches and cold medicine here.

We're talking about biologically based therapies.

We're talking about the wild west of herbs, vitamins, and nutritional supplements.

So the stuff that sits in that hazy middle ground between food and medicine, the stuff you buy at the health food store or, you know, increasingly just at the grocery store

Exactly.

And the mission for this deep dive is to guide you through this material, just like a lecture, but hopefully a lot more engaging than, you know, a monotone reading of the slides.

We want to help you understand what these substances are, why your patients are taking them, and this is a crucial part, how they interact with traditional psychiatric medications.

That interaction piece seems to be the scary part of this chapter.

It's where all the warning labels are.

It is the most critical takeaway.

I mean, if you take nothing else from this discussion, you need to understand the safety profile, because there's a massive misconception out there among patients, and frankly, among some healthcare providers too, that natural equals safe.

Oh, absolutely.

It's just a plant that can't hurt me.

We're going to debunk that pretty hard today.

We have to.

But before we get into the specific herbs, and we will cover St.

John's wort, kava, ginkgo, all the big ones, let's talk about the scope of this, because I think people underestimate just how big this industry is.

The scale is staggering.

I mean, the text opens with some statistics that really paint a picture.

There are over 100 ,000—let me say that again—100 ,000 over -the -counter products available on the market right now.

100 ,000.

That is the definition of paralysis of choice.

How do you even begin to navigate that?

You don't really, not without guidance.

And financially, the impact is massive.

Americans spend roughly $34 billion—that's billion with a B annually—on what we call complementary and alternative medicine, or CAM.

$34 billion.

That is a lot of money.

But what really stood out to me in the reading was where that money is coming from.

Right.

This is the key point for understanding the patient's mindset.

It's not insurance.

No.

Most of that $34 billion is out of pocket.

This isn't money being reimbursed by insurance companies or covered by Medicaid.

This is people opening their own wallets, taking out their cash or credit cards, and paying for these therapies voluntarily.

That tells you a lot about motivation, doesn't it?

Yeah.

I mean, if I'm willing to pay cash for a therapy, but I might complain about a $10 copay for a prescription drug, that says something pretty profound about my belief system.

It says everything.

It tells us that patients are either incredibly compelled by the promise of natural healing, or they're deeply dissatisfied with what the traditional medical system is offering them.

Well, or both, yeah.

Maybe they feel unheard.

Maybe they hate the side effects of pharmaceuticals.

Or maybe they just want to feel empowered to take control of their own health.

Empowerment is a big theme that runs through this whole chapter.

But the text also highlights a global perspective that I think is really important.

This isn't just an American fad.

No, not at all.

It's actually the opposite.

The text points out that globally, something like 80 % of the world's population relies on therapies that we in the US consider alternative.

80%.

Yeah.

So in many cultures, in China, in India,

in parts of Africa and South America, this is the mainstream medicine.

So when we talk about alternative, we're taking a very Western -centric view.

What's alternative to us is primary for most of the planet.

Which brings us to some definitions, because we're going to be thrown around terms like alternative and complementary and CAM.

We should probably make sure we're all speaking the same language here, especially for the students listening who might see this on the multiple choice question.

Right.

Good idea.

Let's break it down.

So alternative therapy refers to treatments that are generally not accepted by conventional Western medicine.

It's usually an eitherer situation.

You're doing this instead of standard care.

Exactly.

The classic example is I'm not doing chemotherapy.

I'm going to a clinic in Mexico for a juice cleanse.

That's alternative.

Okay.

So complementary therapy would be using them together.

Precisely.

Complimentary is when you use those same treatments in conjunction with Western medicine.

You're taking your prescription antidepressant, but maybe you're also doing yoga or taking a specific vitamin supplement to boost its effects.

You are complementing the standard care.

And CAM is just the umbrella term for both.

Correct.

CAM stands for complementary and alternative medicine.

It covers the whole spectrum.

Okay.

Simple enough.

Now, there's a statistic in this chapter that I circled in red ink because it honestly scared me a little bit.

The text calls it the hidden network.

I know exactly the one you mean.

It's about disclosure or the lack of it.

The text says that fewer than 50 % of patients tell their health care provider that they are using these therapies.

Less than half.

Just let that sink in for a second.

You are a nurse.

You're doing an admission interview asking about meds.

And more than half the time, the patient is leaving out the St.

John's wort or the ginkgo they're taking every single morning.

Why?

I mean, why do they do it?

Is it shame?

Do they think the doctor's going to yell at them or something?

It's a complex mix.

I think some patients certainly fear judgment.

They think the doctor or the nurse will roll their eyes, call it voodoo, or just tell them to stop without any discussion.

So they just keep it to themselves to avoid the lecture.

Right.

I can see that.

But for others, it's not fear.

It's just a category error in their mind.

They think, oh, it's natural.

It's just a vitamin.

It doesn't count as a drug.

So I don't need to list it.

They don't see it as relevant medical information.

Which brings us to the real mandate for this chapter.

If you were going into nursing, you must ask.

You have to be the detective in the room.

You have to ask.

And you have to ask in a way that invites honesty.

You can't just ask, what medications are you on?

Because they'll just list their prescriptions.

What's a better way to phrase it?

You have to widen the net.

Something like, what are you taking to support your health?

Do you drink any herbal teas?

Do you take any vitamins or supplements, even things you can get at the grocery store?

You have to be specific.

You have to.

Because, as we're going to see, the interactions between these hidden therapies and prescribed psychotropics can be dangerous, and in some cases, truly life -threatening.

Yeah.

That's the bottom line.

Absolutely.

The biology doesn't care about your definitions.

A chemical interaction is a chemical interaction, whether the substance came from a pharmacy or a garden.

Okay.

So let's unpack the background a bit.

How did we get here?

I feel like 30 or 40 years ago, nobody was really talking about, what's the word?

Psychoneuroimmunology?

It's a mouthful, isn't it?

But that's really the scientific basis for this whole shift.

The rise of psychoneuroimmunology, which is just the study of the mind -body connection,

really fueled interest in these therapies.

How so?

What was the connection?

Well, for a long time, Western medicine was very reductionist.

We treated the body like a machine with separate parts.

If the liver is broken, fix the liver.

If the brain is sad, fix the brain chemistry.

But psychoneuroimmunology started validating what many traditional cultures knew for centuries, that stress affects the immune system, that your thoughts and feelings have a direct, measurable impact on your physical body.

So it wasn't just hippie stuff anymore.

It was becoming real science.

Precisely.

Science started catching up, and consumers were reading this research.

They were feeling empowered, and honestly, many were just dissatisfied with the fragmented nature of traditional care.

They wanted to be treated as a whole person, not just a set of symptoms walking into an office.

But with this explosion of interest came a regulatory nightmare.

The text calls the current landscape a Wild West, and that seems pretty accurate.

It absolutely is, and this is crucial for students to understand because it explains why the quality of these products is so incredibly variable.

We have to talk about the FDA and a piece of legislation called DSHEA.

DSHEA, that's the Dietary Supplement and Health Education Act of 1994.

Yes.

This is the pivot point.

Here was the conflict.

The FDA, understandably, wanted to regulate herbs as drugs.

Makes sense.

If they're drugs, they need rigorous testing, clinical trials, proof of safety and efficacy before they can be sold.

You know, the way we handle Tylenol or Prozac.

Right, the whole billion -dollar process.

Exactly.

But the supplement industry pushed back, hard.

They said, these are plants, these are foods.

We can't patent a plant, so we can't make the money back to pay for those billion -dollar trials.

If you regulate us like drugs, you will destroy our entire industry.

So it was a big political fight, and Congress passed DSHEA.

What did that actually do?

It created a whole new category.

It classified herbs not as drugs, but as dietary and nutritional supplements.

That sounds like a technicality, but it seems like it has huge implications.

Huge.

It means manufacturers do not have to prove that their product works before they sell it.

They don't have to prove efficacy,

and they don't strictly have to prove it's safe in the same way a drug company does.

Wait, really?

Yeah.

The burden of proof is actually on the FDA to prove a product is unsafe in order to pull it off the market.

It's the reverse of how we handle prescription drugs.

So that's why we see those little asterisks on the bottles with the tiny print next to them.

Exactly.

The label can make a claim about supporting health, like supports a healthy mood, but it has to carry that specific disclaimer.

This statement has not been evaluated by the FDA.

This product is not intended to diagnose, treat, cure, or prevent any disease.

It's a massive legal loophole.

So as a consumer, or as a nurse advising a patient, you're looking at a bottle of herbs, and legally, there is no guarantee of efficacy, safety, or quality control standards.

Not from the FDA, no.

Now, the government realized this was a gap.

So the NIH, the National Institutes of Health, created a division called NC SHAM, the National Center for Complementary and Alternative Medicine, and their job is essentially to play catch -up.

So they're the ones doing the research.

In a way, yes.

Their function is to fund research, to try and move these therapies from the realm of folk wisdom into scientific evidence.

They're the ones trying to find out, do these things actually work?

Are they safe?

What's the right dose?

Which is a perfect transition to our first major section here, herbal therapies.

Let's look at the big picture before we zoom in on the specific psychiatric herbs that the chapter focuses on.

So, herbs.

We're talking about plant roots, barks, berries, leaves.

And it's worth noting, this isn't some fringe concept.

The book points out that of our modern pharmaceutical drugs are derived from plants.

Really?

30 %?

That's higher than I thought.

Yeah.

Aspirin comes from Willow Birk.

Digitalis, the heart medication, comes from the foxglove plant.

Nature is an incredibly powerful chemist.

But here is the amazing stat from the chapter.

Only about 1 % of the world's plants have been analyzed for medicinal use.

Wow.

Only 1%.

So the potential there is just vast.

It's almost unimaginable.

And it makes sense why people are drawn to them.

It feels like tapping into this ancient, powerful wisdom.

But we have to address the safety fallacy again.

Right.

We have to keep coming back to this, that pervasive belief that it's natural so it can't hurt me.

I hear that all the time.

It's just a plant.

And your response is?

Well, poison ivy is just a plant.

Arsenic is a natural element.

Hemlock is natural.

The text is very, very clear on this.

There are documented reports of liver failure, renal failure, cardiac arrhythmias, and seizures linked to herbal use.

Just because it grew in the ground doesn't mean it plays nice with your physiology.

And because of that lack of regulation we just talked about, purity is a massive issue.

It is.

Commercial preparations vary wildly.

If you buy a bottle of ginseng from one brand and a bottle from another, the amount of the active ingredient could be completely different.

Or it could be contaminated.

And imports are particularly risky.

The text also has a specific bolded warning for pregnancy.

Yes.

The general rule of thumb for nursing students listening,

most herbs are not recommended for pregnancy.

Full stop.

Some are even known abortifacients, meaning they can cause an abortion or a miscarriage.

So if you have a pregnant patient, the red alert light should be flashing if they even mention taking herbs.

Absolutely.

It's a critical safety conversation to have.

Now in the chapter there is a table.

Table 19 -2.

The cheat sheet.

We call it the cheat sheet.

It's fantastic.

It lists the common herbs angelica, chamomile, ginkgo, kava, melatonin, St.

John's wort, valerian.

And it breaks down their contraindications and adverse effects in a really clear way.

We're going to deep dive into the big psychiatric ones right now.

But for students listening, mark that table.

It's high yield for exams.

Okay.

Let's get into the meat of it.

Section 3.

Herbs for anxiety and depression.

And we have to start with the heavyweight champion of herbal antidepressants.

St.

John's wort.

Hypericum perforatum.

This is probably the most well -known and widely used herbal for mental health.

If you walk into a health food store looking for something to lift your spirits, this is what the clerk is going to hand you.

So why is it so popular?

What's it used for?

Primarily for mild to moderate depression.

Also for seasonal affective disorder or SAD and some sleep issues.

It's one of the top selling botanicals in the US.

And how does it work?

Do we actually know the mechanism?

We have a pretty good idea, yeah.

It's thought to inhibit the reuptake of serotonin, dopamine, and norepinephrine.

Which sounds exactly like what prescription antidepressants do.

It is remarkably similar to the mechanism of standard antidepressants, specifically SSRIs.

It prevents your brain from recycling those feel -good neurotransmitters too quickly, so more of them are available.

So it's not just folklore.

There's a real biochemical reason it might work.

A very real one.

The book also mentions it modulates interleukin 6, which is interesting because that's a protein involved in the immune system and the stress response.

High cortisol, the stress hormone, is linked to depression.

So by modulating that, it helps regulate the stress axis.

Okay.

So the big question, does it work?

What does the data say?

The data is actually pretty strong for specific cases.

Studies show it works for mild to moderate depression.

In fact, some studies, the book sites found it comparable to SSRIs like Zoloft or Paxil in terms of efficacy.

That's impressive to be as effective as a major pharmaceutical.

It is, but, and this is a huge flashing red light, but it is not recommended for severe depression.

Okay.

So if a patient is suicidal or has major depressive disorder with severe functional impairment, St.

John's Wort is not the answer.

Absolutely not.

And here is the nursing alert.

If you're a student, get your highlighter out.

The interactions with St.

John's Wort are extensive and they are dangerous.

Okay, let's list them.

What are we most worried about?

First and foremost, serotonin syndrome.

Because St.

John's Wort works like an antidepressant, you cannot under any circumstances take it with another antidepressant, especially in SSRI.

So if you're on Zoloft, you can't just add St.

John's Wort to boost it.

No, that's doubling up.

You get too much serotonin in the brain.

And serotonin syndrome isn't just feeling extra happy.

It's a medical emergency, high fever, seizures,

muscle rigidity, confusion.

It can be fatal.

So no mixing with Zoloft, Prozac, Paxil, any of them.

None of them.

Got it.

What else?

It messes with your liver enzymes.

Specifically, the book says it induces the CYP450 -3A4 enzyme.

Okay, induces the enzyme.

Let's translate that for us non -pharmacists.

Think of your liver enzymes as a paper shredder in your body.

Their job is to shred up drugs and get them out of your system.

St.

John's Wort hits the turbo button on that paper shredder.

It makes the liver work too fast.

It accelerates drug metabolism.

Okay, so if I'm taking another medication, and I also take St.

John's Wort, my body eliminates that other medication too quickly, and it just stops working.

Precisely.

The levels of the other drug in your blood plummet because your liver is clearing it out at warp speed.

And the specific dangers listed in the text are terrifying.

It dramatically reduces the effectiveness of protease inhibitors.

Which are HIV drugs.

Yes, life -saving HIV drugs.

And, maybe even more commonly, oral contraceptives.

Birth control pills.

Yes.

Imagine a patient who is taking birth control pills religiously, starts taking St.

John's Wort for a little bit of the blues, and suddenly finds herself pregnant because the herb metabolized her birth control too fast and rendered it ineffective.

That is a massive clinical implication.

A life -changing one.

It is.

Nurses need to warn patients about this explicitly.

It essentially cancels out their birth control.

Okay.

Moving on to another one for depression that the chapter talks about.

Sam.

S -Sadenosyl -Elmethionine.

Or SAME for short.

This one seems to have a more specific niche.

It does.

It's widely used in Europe.

In the US, it's popular, but it can be pretty expensive.

The book notes that it's specifically been studied for HIV -related depression.

What are the pros here, according to the text?

It seems to have a faster onset than SSRIs.

You know how Prozac can take four to six weeks to really kick in?

Sarami seems to work faster than that, and it doesn't have the hepatotoxicity, the liver toxicity that some other medications do.

And the text mentions that the US Agency for Healthcare Research and Quality actually gave it a thumbs up.

They did.

They did a big review and found it works as well as prescription drugs for at least partial relief of depressive symptoms.

So this is one of the good guys in the chapter, generally speaking, provided the patient can afford it.

Okay.

Let's switch gears from depression to anxiety.

And the first one on the list is Cava.

Cava,

or Piper Mathisticum.

This has a fascinating cultural backstory.

It's a ceremonial drink in Polynesia.

They use it to soothe the worried mind.

It's a social communal activity.

Sounds lovely, honestly.

It does.

And it works.

The mechanism is that it inhibits MAOB, which is an enzyme, and it has an affinity for benzodiazepine receptors.

So it hits the same buttons in the brain as Valium or Xanax?

Similar buttons, yes.

It binds to those receptors.

That's why it has that potent anti -anxiety effect.

It calms the central nervous system.

But Cava has a very dark cloud hanging over it.

The liver scare.

I remember reading about this.

Right.

There are a number of reports of severe liver failure associated with Cava use.

This led to outright bans in Germany, Canada, and Switzerland.

But not in the US.

No, the FDA just issued a consumer warning.

But the text notes that sales didn't really drop that much.

People still use it.

Is the liver failure a common thing?

Or is it rare?

It's a bit controversial.

Some researchers think the liver toxicity was actually because patients were mixing Cava with other drugs, or that manufacturers were using the bad parts of the plant, the stems and leaves, instead of just the root.

But the risk is there.

And long -term use can cause this really weird side effect where your skin turns scaly and yellow.

Yikes.

Okay, so scaly, yellow skin, and potential liver failure.

But the immediate danger for a nurse on the floor is the interaction.

Right.

Yes, absolutely.

Cava is a potent inhibitor of enzymes.

You do not want to mix this with benzodiazepines or anti -Parkinsonian drugs.

And there is a clinical scenario in the text that illustrates this perfectly.

The story of Sherry S.

Tell us about Sherry.

So Sherry is a 26 -year -old woman.

She's admitted to the hospital for depression.

She's agitated, anxious.

So in the ER, they give her a very standard, small dose of lorazepam.

That's Ativan.

Just one milligram.

Which is a normal dose.

Yeah.

You just take the edge off, make her feel a bit calmer.

A very normal conservative dose.

But when she gets up to the psychiatric unit, she is a mess.

Excessively slurred speech.

She's uncoordinated, stumbling really out of it.

Way more sedated than you'd ever expect from that amount of Ativan.

The nurses are probably thinking, what is going on here?

Right.

They're confused.

She wasn't on any other prescribed meds that could explain it.

But then, as part of the admission procedure, they search her back.

And what did they find?

A bottle of kava capsules.

The missing piece of the puzzle.

The kava potentiated, or boosted, the sedative effect of the lorazepam.

It was a synergistic effect.

One plus one didn't equal two.

It equaled five.

That is such a clear and frankly scary example of why you have to check the patient's belongings and ask the right questions about what they're taking.

Exactly.

If they hadn't found that bottle, they might have thought she was having a stroke or an overdose of some illicit substance.

It could have led them down a completely wrong diagnostic path.

Okay.

Next up for anxiety.

Valerian.

Valeriana officinalis.

This is another really common one, used for both anxiety and insomnia.

It specifically helps with sleep latency, which is a fancy way of saying it helps you fall asleep faster.

I've heard this called nature's valium.

That's a fair nickname because like kava, it has an affinity for GABA receptors, just like valium and Xanax do.

It helps calm the brain.

And does it work?

The studies the chapter cites say yes.

It provides equivalent anxiety relief to benzodiazepines, but, and this is a big plus, with fewer side effects.

It doesn't seem to knock you out quite as hard the next day.

You don't get that hangover feeling that some people get with sleeping pills.

But there is a catch.

Of course there's a catch.

There is always a catch.

Because it works on GABA receptors, you can't just stop at old turkey if you've been taking it for a long time.

You can get withdrawal symptoms, just like you would withdrawing from Xanax or another benzo.

So jitters,

anxiety rebound, maybe even insomnia.

Exactly.

Also a practical tip for nurses from the text.

Valerian smells terrible, like dirty socks.

Laughs.

That's good to know.

So if the patient's room smells like a high school locker room, check their tea.

Exactly.

And it has to be protected from light and moisture, or it loses its potency.

The text also warns that it's only really proven safe for short periods, like four to six weeks.

We just don't have good data on long -term safety.

Before we leave the anxiety section, let's quickly mention a couple of others, the text lists.

Chamomile and Angelica.

Right.

Chamomile is the tea everyone knows, used for relaxation to wind down.

The text says it has valid hypnotic effects in rats.

In rats.

It's always the rat.

But no clear scientific evidence for humans yet.

Though anecdotally, it's very common and considered quite safe.

And Angelica is promising for muscle relaxation without messing up your thinking.

But again, the book says there's just insufficient evidence so far.

Okay.

Let's move to section four.

Herbs for memory and dementia.

And the big name here is Ginkgo biloba.

Ginkgo.

It's a huge seller marketed for memory, concentration, and dementia.

It comes from the maidenhair tree, which is one of the oldest tree species on earth, like a living fossil.

And interestingly, the chapter also mentions it's used for antidepressant -induced erectile dysfunction.

Yes.

That's a sort of niche use.

But the main mechanism of action is that it modulates vascular tone and antagonizes platelet activating factor.

Okay.

Let's put that in plain English.

It thins the blood.

It makes blood flow a bit easier, which theoretically gets more oxygen to the brain and other parts of the body.

So the million dollar question.

Does it actually prevent dementia or memory loss?

Yeah.

That's what everyone wants to know.

The text cites a massive study to answer this.

It was called the Ginkgo Evaluation of Memory Study, or GEM.

It followed over 3 ,000 people for more than six years.

That's a serious large scale study, not just a handful of people.

It is.

The gold standard.

And the result was pretty disappointing for people who believe in it.

It showed that Ginkgo did not slow cognitive decline.

Ouch.

So all those people taking it for their memory.

Might just be experiencing a placebo effect.

But here's the thing.

Whether it helps memory or not, it does thin the blood.

And that brings us to the really important nursing alert.

Bleeding risk.

A huge bleeding risk.

Especially if the patient is already on anticoagulants like aspirin or more significantly warfarin, also known as Coumadin.

Of course, we have another clinical scenario here.

Thomas Jay.

Thomas Jay.

He's a 76 year old man.

He's on warfarin because he had heart surgery and needs to prevent blood clots.

He gets admitted to the hospital and his lab work comes back and his prothrombin time is way off.

Which means his blood is taking way, way too long to clot.

He's at a very high risk of a serious, even fatal, internal bleed.

Right.

And the doctors can't figure out why.

His warfarin dose hasn't changed.

But then the nurse practitioner does a really thorough history and asks about his habits.

Turns out Thomas was taking Ginkgo every day for his memory.

He didn't think it was a drug, so he didn't mention it.

No, of course not.

It was just a supplement.

But the Ginkgo plus the warfarin was too much blood thinning.

It put him in a very dangerous state.

They had to adjust his warfarin dosage and educate him.

Again, the hidden network causing real, measurable medical issues.

Precisely.

It's a perfect example.

Let's transition to section five.

The text calls this problematic herbs.

This is like a red flag list for psychiatric patients that nurses really need to know.

These are herbs that can actively make psychiatric conditions worse.

I can just run through them quickly.

Go for it.

First, ginseng.

People take it for energy.

But if you have bipolar disorder, that energy can push you straight into a manic episode.

It can also worsen anxiety and insomnia in anyone.

So no ginseng for bipolar patients.

That's a clear contraindication.

Absolutely.

Same with evening primrose.

The book says it can also exacerbate mania.

Okay.

Then there's yohimbine.

This is often taken for sexual excitation or performance enhancement.

But its side effect profile is nervousness and insomnia.

Which is the last thing you want if you already have an anxiety disorder.

Exactly.

And finally, one that might be less common but is important,

betel nut.

The chapter notes that heavy consumption can cause severe extra pyramidal symptoms or EPS in patients on neuroleptics.

And EPS is that cluster of side effects like muscle stiffness, twitching, drooling.

Exactly.

The Parkinson -like symptoms that can come from antipsychotic drugs.

So if a patient on an antipsychotic is also chewing betel nut, they might get these really severe side effects that you can't explain by their medication dose alone.

The general rule here seems to be, be hyper aware of patients on drugs with a narrow therapeutic window.

Yes.

The book specifically calls out drugs like lithium and tricyclic antidepressants.

With these drugs, the difference between a therapeutic dose and a toxic dose is very, small.

So throwing an unknown herb into the mix that messes with metabolism or hydration is like playing with fire.

Okay.

We've covered a lot on herbs.

Let's move to section six.

Vitamins, minerals, and nutritional supplements.

These feel a little more, I don't know, scientific and less mysterious.

They are chemically simpler usually and often things our body makes or needs anyway.

Let's start with melatonin.

Everyone knows melatonin.

Sleep.

Right.

It's an endogenous hormone.

Our bodies make it in the pineal gland to regulate the sleep -wake cycle, our circadian rhythm.

It's great for SAD and for sleep onset insomnia.

The text mentions a really interesting use for it.

ICU syndrome.

Yes.

This is a fantastic clinical pearl.

When patients are in the ICU, the lights are always on, machines are beeping 247, their gay night cycle gets completely destroyed.

This can cause severe delirium and psychosis.

So the melatonin helps reset their internal clock.

Exactly.

It can help prevent that delirium.

It's a really practical, low -risk application for nurses in that setting.

What about vitamins?

C and E come up.

Yes, for Alzheimer's.

The text suggests a potential synergistic effect.

Meaning they work better together than they do apart.

Right.

The study suggests neither one works alone to prevent Alzheimer's, but taking them together might offer some protection.

And vitamin E specifically is recommended for tardive dyskinesia, which is that

permanent involuntary twitching side effect of long -term antipsychotic use.

Then we have the B vitamins.

The chapter spends some time on these.

Folate, or B9, is the big one here for depression.

The book says that low levels of folate in the blood are linked to a poor response to antidepressants.

So if you're depressed and your folate is low, your Prozac just might not work as well.

Exactly.

And what's really fascinating is that the text says supplementation helps, even if your folate levels are already normal.

It seems to boost the drugs effect.

Also, deficiencies in niacin B3 and pyridoxin B6 are linked to anxiety.

So it seems like a good B complex vitamin might actually be a solid, low -risk recommendation for many of these patients.

It's a very low -risk, potentially high -reward intervention.

The doctor or NP would probably be very open to it.

Now let's talk about omega -3 fatty acids.

Fish oil.

This section seemed really positive in the text, almost glowing.

It is very positive.

The theory here is basically evolutionary.

Western diets are incredibly high in omega -6 fatty acids.

The kind you find in corn oil, soybean oil, most processed foods, they tend to be inflammatory.

And we're very low in omega -3s, the anti -inflammatory kind from fish.

So this imbalance messes with our brain chemistry.

That's the idea.

It affects the fluidity of cell membranes in the brain and the function of neurotransmitters.

So the thinking is, if we put the omega -3s back in, we can restore balance.

And what's the evidence for that?

It's surprisingly strong.

For depression, the book says four studies showed positive results.

For bipolar disorder, one study found that patients taking omega -3s had longer periods of remission from mania.

Wow.

That's significant.

It is.

Even for schizophrenia, there are promising early results for treating some of the residual symptoms.

And very interestingly for impulsivity and aggression.

Really?

Aggression?

How would that work?

Well, low serotonin levels are linked to impulsivity.

And omega -3s appear to increase serotonin production and function.

So it helps calm that impulsive aggressive drive.

And safety -wise, is there any downside?

It's very benign.

The main complaint is fishy burps or some minor GI upset.

Gross.

But not fatal.

I'll take it.

The only real caution is with very high doses in patients on warfarin.

Again, because of that blood thinning effect.

But generally, omega -3s are a real star in the CAM world with good evidence behind them.

We're heading into the home stretch here.

General concerns and the nursing role.

We touched on purity earlier, but I want to revisit that scary statistic you mentioned.

The 3 out of 10 stat.

A survey found that 3 out of 10 herbal products that were tested contained contaminants like lead, mercury, and arsenic.

That is just terrifying.

You're trying to do something healthy for yourself, and you're literally poisoning yourself with heavy metals.

It goes right back to that lack of regulation.

The manufacturing process determines potency and purity.

And because of the legal loopholes we discussed, it's a total gamble.

So what do we tell patients?

Just don't take them.

That doesn't seem realistic.

No, that's not realistic or helpful.

We tell them to be smart consumers.

Look for the USP seal of approval.

That's the United States Pharmacopeia.

It's a third -party verification that what's on the label is actually in the bottle, and that it doesn't have contaminants.

And the book also recommends avoiding multi -herb products.

Why avoid the combo pills?

The anxiety -be -gone formulas?

Because there are too many variables.

If you have a side effect or an allergic reaction, you have no idea which of the 10 herbs in the formula caused it.

It's better to stick to single -herb products so you can monitor the effects clearly.

We also need to talk about the more subtle risk of self -medication.

Yes, this is a huge one.

It's the danger of delay.

Explain what you mean by that.

If a patient is trying to treat their clinical depression with St.

John's wort, or their panic disorder with Valerian and it's not really working, they might wait months or even years before they seek professional care.

By then, the depression could be severe or the anxiety could have spiraled into agoraphobia.

They're trying to fix it themselves, and they wait too long to get effective treatment like CBT or prescription meds.

Exactly.

Also, the chapter points out that self -medicating anxiety with herbs can lead to dependence issues, very similar to benzo abuse.

Just because it's an herb doesn't mean you can't get psychologically dependent on it to cope with your feelings.

So bring it all back to the nurse.

Let's summarize the role here.

Assessment, assessment, assessment.

You have to ask the question, what are you taking?

And the text makes a big point about how you ask that question.

Yes.

You have to include teas, tinctures, vitamins, powders in your question.

If you just say medications, they'll say no.

If you say, do you drink any herbal teas or take any supplements to help you relax or feel better?

They might say, oh, sure, I drink kava tea every night to sleep.

And that's the info you need.

And the tone matters a lot.

It's everything.

If you are judgmental, if you roll your eyes, the patient shuts down immediately.

You have to be open, respectful, and culturally competent.

You have to understand that for many patients, this is tied to their identity, their family history, their culture.

It's not just some random pill they picked up.

You can't just dismiss it as nonsense, even if you're skeptical.

Right.

Even if you think it's nonsense, the patient doesn't.

And your primary job is to keep them safe, which means you need the whole truth.

And you only get the truth if you build trust.

The text also mentions that nurses can actually get certified in this area.

Yes.

You can become a holistic nurse certified or HNC.

It's a way to formally integrate this knowledge into your practice and show that you have expertise in this area.

That brings us to our last big topic, section eight, future directions.

Where is this all going?

The text ends on a hopeful note, talking about integrative health care.

This is the ideal future state.

It's about blending the best of Western medicine, our amazing diagnostics, our acute care, our trauma capability, with the holistic wellness -focused nature of CAM.

So not an either, but a both -hand approach.

Exactly.

Using pharmaceuticals for a crisis, but using meditation and omega -3s for long -term and prevention.

It's about moving away from a fragmented system that just treats disease and costs a fortune toward a system focused on wellness and the mind -body connection.

It seems like the only logical path forward, really.

It is.

And the closing thought in the text is really powerful.

It suggests that people who are staunch dissenters against CAM often use circular reasoning.

They say things like, it's a waste of money to research this because there's no proof it works.

You can't get the proof if you don't do the research in the first place.

Exactly.

It's a catch -22.

We need an open mind.

We need to follow the evidence wherever it leads, whether it leads to a pill bottle or a plant root.

So to recap our last -minute lecture for everyone listening, we covered the big three herbs.

St.

John's wort for depression, but it interacts with everything.

Cava for anxiety, but you have to watch the liver.

And valerian for sleep, but watch out for withdrawal.

We covered ginkgo, which things the blood but probably doesn't help with dementia.

And the surprising promise of omega -3s for a whole range of conditions.

And most importantly,

the vital non -negotiable importance of asking your patients what they're putting in their bodies.

And not just asking, but understanding why they are taking it so you can have a real conversation about risks and benefits.

We want to leave you with a provocative question straight from the text to chew on as you study.

Here it is.

What are the implications of patients taking health into their own hands without scientific support?

Is this the ultimate form of empowerment or is it a dangerous game of roulette?

There's no easy answer to that one.

No, there's not.

But it's the reality that future nurses are practicing in.

Thank you so much for joining us for this deep dive into chapter 19.

Whether you are a student cramming for that test or just someone curious about what's on the shelf at the health food store, we hope this was helpful.

Good luck with your studies and stay curious.

This has been the Deep Dive Last Minute Lecture Team signing off.

Catch you next time.