Tag: drug interactions

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Insulin Aspart (Novolog) Pharmacology Podcast Episode 312

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On this podcast episode, I discuss insulin aspart pharmacology, adverse effects, drug interactions, and much more.

Insulin apart is a rapid acting insulin product meant to bring down blood sugars quickly (most often after meals).

It is important to remember a couple of medications that may counteract the effects of insulin and apart and raise blood sugar. I talk about corticosteroids and thiazide diuretics in the drug interaction section.

Fiasp is a slightly modified insulin aspart molecule that allows for quicker absorption. This quicker absorption will allow for blood sugars to come down sooner than the Novolog formulation.

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Gentamicin Pharmacology Podcast Episode 311

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On this podcast episode, I discuss gentamicin pharmacology, adverse effects, monitoring, drug interactions and much more!

Drug monitoring is critical with gentamicin. Trough and peak concentrations can guide therapy and identify someone at risk of toxicity.

Nephrotoxicity is a major concern with gentamicin. There are numerous nephrotoxic agents that can increase this risk. I discuss them on the podcast.

Ototoxicity is another risk associated with gentamicin. Loop diuretics like furosemide can increase this risk. Learn more on this podcast episode.

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Fenofibrate Pharmacology Podcast Episode 310

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On this podcast episode, I discuss fenofibrate pharmacology, adverse effects, kinetics, drug interactions, and much more!

Fenofibrate is typically only used for hypertriglyceridemia. The primary risk of hypertriglyceridemia is pancreatitis so we treat these levels because of this risk.

LFTs elevation has been associated with fenofibrate use as well as myopathy. In the presence of myopathy, checking CPK may be considered.

Fenofibrate is a weak CYP2C9 inhibitor. Warfarin and phenytoin are two important medications that may be affected by the use of fenofibrate.

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Levofloxacin Pharmacology Podcast Episode 309

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On this podcast episode, I discuss levofloxacin pharmacology, adverse effects, boxed warnings, interactions, and much more.

Levofloxacin is well known to cause QTc prolongation and many drugs can increase this risk such as antiarrhythmics, citalopram, antipsychotics, and many more.

Binding interactions are important when discussing levofloxacin pharmacology. Calcium, iron, magnesium, and many other cations can block the absorption of this medication.

I discuss tendon rupture in relation to levofloxacin use and what factors may increase the risk of this rare adverse effect.

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Darifenacin Pharmacology Podcast – Episode 308

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On this podcast episode, I discuss darifenacin pharmacology, adverse effects, drug interactions and much more.

CYP3A4 and CYP2D6 are important enzymes in relation to darifenacin. I breakdown the importance of these enzymes and how they can impact drug therapy.

Darifenacin has anticholinergic activity but affects the central nervous system less than other agents in its class such as oxybutynin and tolterodine.

Darifenacin’s pharmacology is selective for the Muscarinic-3 (M3) receptor in bladder tissue which helps reduce the risk for CNS adverse effects.

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Naltrexone Pharmacology Podcast – Episode 307

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In this podcast episode, I discuss naltrexone pharmacology, adverse effects, drug interactions, and much more.

Naltrexone is an opioid antagonist and can blunt the effects of opioid agonists. Because of this, the medication can be used to manage opioid use disorder.

Hepatotoxicity is a concern of naltrexone and because of this, it is recommended to monitor LFTs.

There is an injectable, long-acting formulation of naltrexone that can be used for opioid and alcohol use disorder treatment.

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Acamprosate Pharmacology Podcast – Episode 306

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On this podcast episode, I discuss acamprosate pharmacology, adverse effects, drug interactions, and much more!

Acamprosate’s most common adverse effect is diarrhea. It is a primary reason why patients will ask to stop taking this medication.

It is critical to assess renal function prior to using acamprosate. Dose adjustments are recommended when patients have a CrCl of less than 50 ml/min.

Unlike naltrexone, acamprosate avoids liver metabolism making it an alternative option in alcohol use disorder for patients who have liver impairment.

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Alfuzosin Pharmacology Podcast

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On this podcast episode, I discuss alfuzosin pharmacology, adverse effects, drug interactions, and much more!

Alfuzosin is an alpha blocker used to help relieve the symptoms of BPH.

Low blood pressure is a possible adverse effect of alfuzosin and is more likely when combined with PDE-5 inhibitors like sildenafil.

CYP3A4 is an important enzyme in the metabolism of alfuzosin. Inhibitors of CYP3A4 can raise concentrations and increase the chance of alfuzosin toxicity.

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Methadone Pharmacology Podcast

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In this podcast episode, I discuss methadone pharmacology, adverse effects, drug interactions, and pharmacokinetics.

Methadone is a full opioid agonist that may be used for pain management and opioid use disorder.

Transitioning from methadone to another opioid is complicated. I discuss conversion in this podcast episode.

Methadone can increase the risk of QTc prolongation and also has a lot of drug interactions. I discuss them in detail in this podcast episode.

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Meperidine Pharmacology Podcast

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On this podcast episode, I discuss meperidine pharmacology, adverse effects, pharmacokinetics, drug interactions, and much more!

Meperidine is an opioid that is seldom used due to neurotoxicity. I describe how this can happen in this podcast episode.

Meperidine has numerous drug interactions and using a CYP3A4 inhibitor may increase the risk for toxicity.

Seizures are a risk with meperidine due to its neurotoxic metabolite normeperidine. I discuss this further in this podcast episode.

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