The video provides a concise, nursing‑focused overview of lithium (generic name) and its trade name Lithobid, describing its classification as a lithium salt and antimanic therapeutic class. It explains that lithium is used as a mood stabilizer for bipolar disorder, though its exact mechanism of action is not fully understood. The speaker outlines the hypothesized actions: modulation of dopamine (reducing overactivity), increased serotonin release, and decreased norepinephrine release, all contributing to mood stabilization. A detailed list of side effects is presented, including renal toxicity, polyuria, hyponatremia, electrolyte disturbances, CNS effects (seizures, dizziness, lethargy), respiratory depression, hypotension, tachycardia, GI upset, weight gain, muscle weakness, tremors, rigidity, and hypothyroidism. The video emphasizes nursing assessment priorities: monitoring mood, suicidal ideation, intake/output, weight changes, and serum lithium levels (twice weekly during initiation, then every two months). It highlights signs of lithium toxicity (GI upset, slurred speech, coordination loss, muscle twitching, drowsiness) and safety concerns such as fall risk. Contraindications (cardiovascular disease, renal impairment, dehydration, sodium imbalance) and numerous drug/vitamin interactions are noted. Patient education points stress consistent dosing time, not missing or doubling doses, long‑term therapy adherence, fluid intake (2‑3 L/day), moderate sodium diet, avoiding excessive sweating and diuretics, and reporting GI upset. The speaker also promotes supplemental study resources (pharmacology cheat sheet, medication database, nursing SOS membership) and encourages viewers to subscribe and engage with the channel.
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In this video, you'll learn the side effects of lithium and lithium's mechanism of action. Now, pharmacology can be tough to learn about a nursing school, right? Yes. So we're gonna break it down super simple so that you can finally understand it for your nursing school exams. So do not worry, friend. Please don't worry. You don't need to figure everything out alone anymore for nursing school. We're here to help you every step, step of the way. And if you need more help with learning pharmacology in nursing school, be sure to download this free pharmacology cheat sheet that we have for you that walks you through how to study pharmacology step by step so you can learn it faster, learn it easier, no stress or overwhelm. The link is down below in the description for you to get that now hit that subscribe button and click the notification bell and subscribe. And let's dive in.
We're going to talk about lithium. Now. The generic name is lithium and the trade name is Lithobid. The pharmacologic class is a lithium salt and the therapeutic class is an antimanic. Now, lithium is indicated as a mood stabilizer and it's used to prevent and treat episodes of mania or associated with bipolar disorder. The mechanism of action of lithium is not fully known, but it is widely distributed in the central nervous system and interacting with many different neurotransmitters and receptors. This is thought to alter the effects of dopamine, decreasing the excited neurotransmissions that are occurring. By decreasing the number of excited neurotransmissions, it helps to stabilize and regulate mood. During mania, there is usually a dopamine overactivity, so this helps to limit the number of excited neurotransmissions that are happening. It is also thought to increase the production and the release of serotonin, which is also known as the happy neurotransmitter, and decrease along with this, the norepinephrine, which is a stress hormone, from being released. So it is increasing the release of that happy hormone and decreasing the release of that stressed hormone. By doing all those things, the therapeutic effect is decreasing the amount of excited neurotransmissions, which helps with mood stabilization. And lithium prevents the ups and downs that occur with bipolar disorder, which can involve lows such as depression and highs such as such as frenzied behavior. Now, some side effects you're going to want to pay attention to. If your patient is taking lithium, it can cause renal toxicity, which can happen and Lead to a decrease in renal function. This can cause polyuria, which is an increase in unconcentrated urine output. So they are getting rid of a lot of fluid, but it's not concentrated urine, it's just very unconcentrated. This can lead to further electrolyte imbalances. Hyponatremia can happen due to the changes that lithium causes with the sodium transport channels. It results in a decrease in sodium resorption in the renal tubules. So it's leaving more sodium to be left in the body, which means it's an increase in excess excretion of sodium. This leaves less sodium inside the cells. It can cause seizures, dizziness, lethargy, slowed motor response, dry mouth, blurry vision. Can all happen when there's electrolyte imbalances specifically associated with sodium. Respiratory depression and hypotension can occur because there's a decrease in dopamine, which slows the central nervous system down because the receptor sites are blocked. Tachycardia can occur as a response to that low blood pressure that was decreased from the lack of dopamine in the central nervous system. So the heart is trying to increase that blood pressure by beating faster. It can cause constipation, GI upset weight gain because of the decreased dopamine, which causes a decrease in the central nervous system, slowing everything down. It can also cause muscle weakness, tremors and rigidity, especially with high doses of the lithium, as it can cause changes in the neurotransmitters which control movements. Big one of them is going to be dopamine. Lithium interferes with T3 and T4 secretions, so those thyroid hormone secretions, it can cause hypothyroidism, and the mechanism of action of this is not exactly clear. Some things you're going to want to watch out for in your nursing assessment. If your patient is taking lithium, you're going to want to monitor their mood closely, watching for any increased signs of suicidal ideation, since those can be increased anytime neurotransmitters in the brain are being messed with. Monitor intake and output closely to help monitor your kidney function. Watch for any acute weight gain, which will help determine if the kidneys are functioning properly. Monitor the blood levels of lithium to maintain therapeutic levels. Frequently, it's important to avoid lithium toxicity, and it can happen very quickly. The level should be drawn twice a week while starting therapy, and then every two months once a therapeutic level is stabilized. Watch for signs of lithium toxicity, which could include GI upset, slurred speech, decreased coordination and muscle weakness or twitching. It can cause drowsiness or dizziness. So the patient is at higher risk for falls. So be sure to monitor them for safety. Some major contraindications to watch out for are going to be if your patient has a history of cardiovascular disease, any decreased renal function because it can easily cause renal toxicity. Because because it's excreted by the kidneys, it should be used cautiously if the patient is dehydrated or has a sodium imbalance to begin with because of its effect on the renal tubules, it will further increase those electrolyte imbalances. Lithium has many drug and vitamin interactions, so those interactions should always be monitored. For your patient education. With lithium, it's super important that you have your patient take the medication at the same time every day. Do not skip any doses or stop taking the doses and if a dose is missed, do not take two doses. This medication treats the symptoms, but it does not cure the condition, so it is a long term therapy. The patient should continue taking lithium even when they're feeling better. It can cause dizziness and drowsiness initially, so it's important to be cautious with the increased risk of falls and encourage your patient to move slowly. You'll also want to make sure your patient increases their fluid intake to 2000-3000 ML per day to help maintain electrolyte balance. Maintaining sodium levels with some dietary adjustments will be necessary to continue with a therapeutic level and maintain their sodium levels. A moderate sodium intake diet, while avoiding excessive sweating and avoiding diuretics such as coffee or tea will be very helpful. If GI upset occurs such as diarrhea, they should notify their healthcare provider. Since sodium levels are very easily effective and cause renal toxicity quickly, close monitoring is required, especially when fluid levels are fluctuating. Lithium levels must be monitored closely and the patients need to understand the importance of maintaining monitoring throughout therapy. Some nursing considerations to let your patient know of. You're going to want to make sure your patient is able to monitor drug levels closely when they are initiating lithium therapy and throughout the therapy. Watch for any drug interactions and there could be many, especially with over the counter medications and vitamins. The medication levels should be drawn in the morning right before they are taking the medication. Now remember, this is just a treatment for the symptoms. It is not a cure, so therapy will be long term.
Now, if you want a deep dive into all of the other medications that you need to learn about in nursing school, like there's a lot, right? You do not want to miss the medication database that we have for you inside the nursing SOS membership community. If you are frustrated because you have to figure everything out yourself and learn all of these meds in nursing school and don't even know where to start, do not worry, we will teach you everything you need to know step by step so you can finally learn it faster and easier. Now the link is down below for you to check out all of the details. Now be sure to like, comment, subscribe and share this video with a friend. And click on one of these videos over here so you can keep rocking nursing school. And as always my friend, go become the nurse that God created only you to be. And I'll catch you next time on the Nursing School Show. Take care.
