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Pearls on Benign Prostatic Hyperplasia

✨ Benign Prostatic Hyperplasia (BPH) is a condition that can affect quality of life, but there are treatment options to help manage symptoms. ⁠

✨ BPH is a non-cancerous enlargement of the prostate, often affecting men as they age. It’s driven by increased dihydrotestosterone (DHT) in the prostate, which promotes cellular growth and hyperplasia. This can block urine flow, causing lower urinary tract symptoms (LUTS) such as urgency, frequency, nocturia, and incomplete emptying.⁠

✨ There are many drugs that can worsen BPH. Check out the post for a fun mnemonic to help you learn the drugs.⁠

✨ Alpha-1 adrenergic antagonists relax bladder smooth muscle to reduce obstruction. Uroselective agents like tamsulosin, alfuzosin, and silodosin target alpha-1A receptors in the prostate, minimizing side effects like dizziness and orthostasis. However, they can increase the risk of Intraoperative Floppy Iris Syndrome during cataract surgery. Silodosin may cause sexual side effects, while alfuzosin can cause QT prolongation.⁠

✨ 5 alpha-reductase inhibitors shrink the prostate by inhibiting the conversion of testosterone to DHT. Finasteride targets type II alpha-reductase, while dutasteride inhibits both types. Dutasteride may require 6 months or more for maximum effect.⁠

✨ PDE-5 inhibitors promote smooth muscle relaxation in the prostate and bladder. BPH and erectile dysfunction (ED) often occur together. Caution is needed when using tadalafil with alpha-blockers due to the risk of hypotension, and is also contraindicated in patients taking nitrates.⁠

✨ By targeting the mechanisms driving prostate growth and urinary symptoms, we can help “clear the way” for better patient outcomes and “ease the flow” of their quality of life.⁠

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Pearls on Antidepressants

🤓Tips on selecting antidepressants⁠

💊 Selecting the right antidepressant can be overwhelming, but focusing on key patient characteristics helps make this process clearer. It is important to ensure you collect a thorough patient history to assess what treatments may or may not have worked for them.⁠

✨ It is important to consider pre-existing conditions a patient has before initiating an antidepressant. For example, if the patient has an increased risk for QT prolongation, it would be important to avoid antidepressants that can prolong the QTc such as citalopram, escitalopram, and tricyclic antidepressants (TCAs). Always evaluate for potential drug interactions and patient-specific risks, like fall concerns in elderly patients or adherence challenges in younger ones.⁠

✨ For treatment-resistant depression, options like augmentation (lithium, buspirone, atypical antipsychotics) or combining antidepressants with different mechanisms may be beneficial.⁠

💡 Use these pearls to guide your recommendations and provide personalized care for every patient.⁠

Pearls on Antidepressants Read More »

Acid-Base Abnormalities

💊 Understanding acid-base abnormalities is crucial for diagnosing and managing various medical conditions. Let’s dive deeper into the specifics to strengthen your knowledge.⁠

✨ pH refers to how acidic or basic a solution is. If the solution becomes more acidic, the concentration of protons increases, and the pH decreases. The opposite occurs in a more basic solution: the concentration of protons decreases and the pH rises. A pH below 7.35 indicates acidosis, while a pH above 7.45 signifies alkalosis. These conditions are further classified as metabolic or respiratory based on the underlying cause (e.g., HCO3 or pCO2 changes).⁠

✨ The acid-base status of a patient can be determined using an arterial blood gas (ABG), consisting of pH, pCO2, pO2, HCO3, and O2 Sat. In the body, the kidneys help to maintain a neutral pH by controlling bicarbonate (HCO3) reabsorption and elimination. Bicarbonate therefore acts as a buffer as well as a base. The lungs also aid in maintaining a neutral pH in the body via the control of carbonic acid (directly proportional to the partial pressure of carbon dioxide: pCO2). Carbon dioxide also acts as a buffer as well as an acid. When we have variations in these levels, acid-base disturbances occur. ⁠

✨ Calculating the anion gap in metabolic acidosis can help pinpoint the cause. Remember the mnemonic MUDPILES for high anion gap acidosis. An anion gap is considered high if it is greater than 12 mEq/L. ⁠

✨ Recognizing these patterns and their compensatory responses is key to interpreting ABGs effectively. Keep practicing to master acid-base abnormalities! ⁠

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Insulin Dosing Calculations

💉Understanding insulin calculations is essential for the NAPLEX and for providing safe, effective patient care. Mastering these concepts will help you appropriately dose patients’ insulin in outpatient, inpatient, and emergent settings.

✨The Rule of 500 is used to estimate the insulin-to-carbohydrate ratio (ICR), which guides how much insulin a patient requires to manage carbohydrate intake during meals. This calculation is vital for individuals with diabetes, as it helps balance carbohydrate consumption and insulin dosing to prevent postprandial hyperglycemia.

✨The Rule of 1800 is used to determine the insulin sensitivity factor (ISF), which estimates how much one unit of rapid-acting insulin will lower a patient’s blood glucose. It provides a practical way to individualize insulin dosing based on patient-specific needs and ensures that high blood glucose levels can be managed safely without risking hypoglycemia. The Rule of 1800 is a key tool for improving glycemic control, especially in patients with variable blood glucose patterns, or those transitioning to insulin therapy.

✨Continuous infusion insulin is critical in the management of diabetic ketoacidosis (DKA). Continuous infusion provides a steady delivery of insulin. This is essential for suppressing ketogenesis, lowering blood glucose levels gradually, and correcting the metabolic abnormalities seen in DKA. This method allows for precise control of insulin administration, with the aim to prevent hypoglycemia or rapid shifts in osmolality. It requires close monitoring and adjustments based on the patient’s clinical response.

✨Insulin dosing can be complex but is manageable with the right tools. Focus on these foundational rules to ensure confidence in practice and patient safety. Happy learning!

Insulin Dosing Calculations Read More »

Antibiotic Considerations in Pediatrics

💊 Antibiotic choices in pediatrics require special care. Here are some considerations to keep in mind in this patient population.⁠

✨ Ceftriaxone and sulfamethoxazole/trimethoprim (Bactrim) can increase a patient’s risk for developing kernicterus. Kernicterus occurs when high levels of unconjugated bilirubin in a newborn’s blood cross the blood-brain barrier, depositing in brain tissues, thus causing neurotoxicity. This bilirubin buildup can lead to permanent neurological damage, which can manifest as movement disorders, hearing loss, and cognitive impairment.⁠

✨ Doxycycline and tigecycline can cause tooth staining in children by binding to calcium ions in developing teeth, leading to yellow-gray or brown discoloration. This happens during tooth mineralization, as the drugs incorporate into dentin and enamel, potentially causing permanent staining if given during key developmental periods, typically up to age 8.⁠

✨ Nitrofurantoin in pediatric patients under one-year-old for febrile urinary tract infections (UTIs) should be avoided as it doesn’t reach adequate concentrations in the kidneys to effectively treat upper urinary tract infections. It is difficult to distinguish cystitis from pyelonephritis in this population, thus other antibiotics are preferred to ensure appropriate treatment.⁠

✨ Fluoroquinolones can be used safely in pediatric patients when necessary, and risks and benefits should be carefully considered. Although tendon rupture is rare and occurs at similar rates in both children and adults, it’s important to recognize that the risk of arthrotoxicity is greater in pediatrics. Nevertheless, research indicates that these medications do not negatively impact growth in children.⁠


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Top 5 Mnemonics for NAPLEX

It’s NAPLEX season. Yup. The ONE test that every single pharmacy student has to pass to practice. 🙈⁠

🌟 The goal of the NAPLEX exam is to ensure you have the knowledge, judgment, and skills necessary to practice pharmacy at entry-level competency (AKA make sure you can practice pharmacy without killing someone). ⁠

🌟 It can be easy to get overwhelmed reviewing 4 years of pharmacy school into a couple of weeks. So what should you focus on? Start with the basics of drug therapy. You are more likely to get asked about a rare (but potentially fatal) side effect than you are to get asked about the 3rd line therapy with refractory hypertension or antibiotic choices for multidrug-resistant bacteria. Prioritize your studying accordingly. ⁠

⁠YOU GOT THISS!!

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Hepatoxic Drugs

👊🏻 Drug-induced liver injury 🥊⁠

💊 There are SO many medications that can cause liver injury through various mechanisms. However, some key medications have black box warnings for liver toxicity and are more well-known for their risk. These are the ones that you should know for exams! 🗒️⁠

🔺 Hepatoxic drugs are usually well tolerated unless high doses are administered. In most cases, the primary treatment is to STOP the drug, especially when liver enzymes (AST and ALT) rise 3 times above their upper limit of normal.⁠

🧠 Some other helpful memory tips:⁠
-Acetaminophen’s brand name is Tylenol which looks similar to ‘Tired Liver’. ⁠
-Nefazodone and Nevirapine are never used anymore due to their severe liver toxicity so think never-zodone and never-apine. ⁠
-KEToconazole can KILL your liver⁠

🤔Some of them are a stretch but if you’re willing to try them out and they help you retain the information then that’s a win in my books. ✌🏻⁠


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ACE inhibitors vs. ARBs.

                                                               What’s the difference?⁠

💊Angiotensin converting enzymes (ACE) inhibitors and angiotensin receptor blockers (ARBs) are antihypertensive medications used to treat high blood pressure and other comorbid conditions.⁠

💊While the enzyme inhibitors work by reducing the level of angiotensin II in the body, the receptor blockers inhibit the function of angiotensin II by directly blocking the specific receptor. ⁠

⭐️Key Takeaways⭐️⁠

-ACE inhibitors and ARBs have similar benefits, and both work equally well in the body though ARBs are thought to have less side effects. ⁠
-ACE inhibitors and ARBs are both considered first line for the treatment of hypertension. ⁠
-ACE inhibitors remain first line for HFrEF with ARBs as an alternative. ⁠
-For those who cannot tolerate an ACE inhibitor, ARBs are reasonable substitutes (ex: dry cough)⁠
-It is NOT recommended to treat hypertension patients with both ACE inhibitor and ARB as it can increase adverse effects. ⁠

ACE inhibitors vs. ARBs. Read More »

Amphotericin

If drugs came to life – Meet Ampho-terrible the fungal foe that packs a punch! 🥊 ⁠

🍄Amphotericin B is an antifungal medication that’s used to treat serious and life-threatening systemic fungal infections. But remember, with great power comes… well, some side effects! 😅⁠

✨The two main side effects to watch out for are nephrotoxicity and infusion-related reactions such as chills and fevers (often referred to as ‘shake and bake’). Because of its large side effect profile, it is often referred to as Ampho-TERRIBLE. ⁠

✨Some key things to keep in mind:⁠

-Liposomal amphotericin B (AmBisome) is a lipid formulation that a significantly improved toxicity profile compared to amphotericin B deoxycholate. ⁠

-Fevers, chills, and rigors are minimized by providing pre-medication with acetaminophen, diphenhydramine, and/or hydrocortisone 30–60 minutes prior to amphotericin B infusion.⁠

-The incidence and severity of nephrotoxicity can be reduced by providing 500–1000 mL bolus of normal saline before and after amphotericin B infusion.⁠

-Because it precipitates in normal saline, it must be given in a solution with 5% dextrose in water.⁠

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Atazanavir

⌛️ Time to get HIV Protease Outta Here with Atazanavir! 🦠💊 ⁠

🌟 Let’s talk about Atazanavir’s nickname, Bananavir. 🍌⁠

🌟 Atazanavir is used with other antiretroviral medications to treat human immunodeficiency virus (HIV). 🦠💊 It belongs to a class of drugs known as protease inhibitors. ⁠

🌟 One of the most common side effects with atazanavir is hyperbilirubinemia (35-49% of adults) causing yellow discoloration of the eyes and skin (jaundice) hence why this drug is often nicknamed BANANAVIR! 🍌Other common side effects include rash, nausea, headache, cough, fever, and hypercholesterolemia. ⁠

🌟 Key Points to Know For Exams⁠

-It is marketed under the brand name Reyataz⁠

-It works to inhibit HIV protease from breaking up large viral proteins into new mature HIV particles⁠

-It comes as a capsule and as a powder to be taken with food once a day to increase absorption⁠

-Hypersensitivity reaction can occur (Stevens-Johnson syndrome, toxic skin eruptions)⁠

-Beware of drug interactions as atazanavir is metabolized via CYP3A4 and it requires an acid gastric environment for optimal absorption (PPIs are contraindicated with use)⁠

-Atazanavir is often given with ritonavir to help boost levels of atazanavir concentrations⁠

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ototoxic drugs⁠

Ototoxic Drugs⁠

ototoxic drugs⁠

Hear me out as we discuss ototoxic drugs⁠

👂 Ototoxicity is a medication side effect involving damage to your inner ear. It can cause symptoms like ringing in your ears (tinnitus), hearing loss and balance problems.⁠

🌟 The risk for ototoxicity depends on the type of medication (common in some medications than others), the dose and duration of the medication, if you’re taking a combination of ototoxic drugs, and genetics. ⁠

🛑 The treatment is to stop the offending ototoxic agent. This often helps reverse the symptoms, although some ear damage may be permanent. ⁠

🌟 The most common drugs associated with ototoxicity includes aminoglycosides, chemotherapy such as cisplatin, loop diuretics, and salicylates. Check out today’s post to learn a fun mnemonic on other drugs that can cause ototoxicity. ⁠
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Ototoxic Drugs⁠ Read More »

Dual Antiplatelets

Let’s talk DUAL ANTIPLATELETS 👏🏻

🌟WHEN do you use dual antiplatelet therapy (DAPT)?

1️⃣ Patients who have had acute coronary syndrome event (ACS) such as a heart attack

2️⃣ Patients who have stable ischemic heart disease and receive a stent placement (in other words, non-ACS setting)

🤫 pssst – if you don’t know what an ACS is – it is ANY condition brought on by a sudden reduction or blockage of blood flow to the heart. This is often caused by plaque rupture or clot formation in the heart’s arteries leading to sx of chest pain.

🌟 Okay great, we know when but WHY?

ACS is considered a medical emergency; treatment is needed to reopen the arteries and restore blood flow to the heart so it can work properly. This is usually done with a combination of medications + procedures such as a PCI (percutaneous coronary intervention) where a small structure called a stent is placed to open up the blocked blood vessel.

Afterward, the patient is at higher risk of future thrombotic events since they just had an occurrence and increased risk of stent thrombosis. This is where DAPT is recommended to prevent recurrent ischemic events.

🌟 Cool – but WHAT are dual antiplatelets?

Dual antiplatelet therapy recommendations include:

Aspirin PLUS ticagrelor, prasugrel, or clopidogrel

🌟 P2Y12 inhibitor considerations:

-Prasugrel is the most potent followed by ticagrelor, then clopidogrel (🧠TIP: Prasugrel is the most Potent ‘P’ for potent – but with increased potency comes increased bleeding risks. Avoid prasugrel in pt. age >75, hx of TIA/stroke, and hepatic dysfunction

-All of them are dosed once daily except ticagrelor which is dosed twice daily (🧠TIP: Ticagrelor is dosed ‘T’ for Twice daily) – can your patient be compliant?

-Clopidogrel and prasugrel are affordable and available in generic versions while ticagrelor is not. Can your patient afford it?

 

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Diabetes

Let’s 👏🏻 talk 👏🏻 diabetes👏🏻!⁠

🌟American Diabetes Association (ADA) and the European Society of Cardiology (ESC) released new 2023 guidelines recently and I just had to do a doodle note on it. 🤓⁠

🌟There has been lots of debates regarding whether metformin should still be first-line for all patients with type 2 diabetes. ⁠

🌟 It still is a great first-line option for most patients due to it’s proven efficacy, safety, and low cost. There are also some speculation that it m-a-y have cardiovascular benefits as well considering many patients in the clinical trials were also on metformin. ⁠

💗🫘However, in patients with ASCVD or high ASCVD risks, heart failure, and chronic kidney disease, the ADA/ESC guidelines recommend starting a SGLT-2 inhibitor or GLP-1 agonists with cardiovascular and renal benefits regardless if they have type 2 diabetes. ⁠

🌟 It is still important to look at patient specific factors (cost, comorbidities, side effects) when deciding which agent to start first or to add on. ⁠

👉🏻GLP-1 agonists commonly have GI side effects and carry warnings for rare pancreatitis and gallbladder disease. It can cost patients $1000/month. Most of the agents are injectables and supply is not consistent.⁠

👉🏻SLGT-2 inhibitors are linked to genital yeast infections, and volume depletion. Cost is about $600/month but they do come in oral formulations.⁠


Reference: Diabetes Care. 2023 Jan 1;46 (suppl 1):S140-S157⁠

Diabetes Read More »

H.Pylori

Let’s talk H. Pylori Treatment! 💊

⭐️ H. pylori is a type of bacteria that infects your stomach and causes damage to the tissue leading to peptic ulcers, inflammation, and gastritis.

⭐️ Treatment includes:

1️⃣ Medications that decrease stomach acid to help decrease damage to tissues (ex: PPI or H2-antagonist)

2️⃣ Medications such as bismuth subsalicylate (AKA Pepto-Bismol) that coats the stomach protecting it from stomach acid (also has anti-inflammatory properties and antimicrobial activity against H. Pylori)

3️⃣ At least 2 antibiotics in the regimen to prevent the bacteria from developing resistance to the antibiotics (ex: amoxicillin, tetracycline, metronidazole, or clarithromycin)

⭐️ Initial therapy for H. Pylori includes:

👉 Bismuth quadruple therapy and concomitant (non-bismuth quadruple therapy), both administered for 10-14 days, are recommended FRIST-LINE treatments.

👉 In penicillin-allergic patients, bismuth quadruple therapy is the preferred initial treatment. Consider referral for allergy testing in patients who fail initial therapy, since many patients who report penicillin allergy are not truly allergic.

👉 Alternative initial therapies include sequential, hybrid, levofloxacin-tripe, levofloxacin sequential, and LOAD therapies.

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Heart Failure Drugs

💔 Let’s talk about HF medications 👏🏻⁠

🧠 Understanding heart failure (HF) medications can be difficult if you don’t understand the underlying pathophysiology of the condition. ⁠

🤓 Check out the slides to learn more about the pathophysiology of heart failure that leads to the common symptoms seen. ⁠

✨ Goals of therapy are to manage structural heart disease, reduce morbidity and mortality, decrease Na+ and water retention, and eliminate or minimize HF symptoms. ⁠

✨ The cornerstones of HF treatment are medications targeted towards decreasing the activity of compensatory mechanisms and improving cardiac workload, controlling excess fluid, and enhancing cardiac contractility. ⁠

⭐️ Loop diuretics: control symptoms of fluid overload (e.g., shortness of breath, edema)⁠
⭐️ ACE/ARBs/ARNIs: shown to decrease mortality; recommended in ALL pt. with HFrEF ⁠
⭐️ Beta-blockers: shown to decrease mortality when added to an ACE inhibitor; recommended in ALL patients with HFrEF⁠


👉🏻 Check out the full review of HF medications in our F-R-E-E Heart Failure Guide which includes a mind map coloring page and heart failure drug table!

Heart Failure Drugs Read More »