『Real Life Pharmacology - Pharmacology Education for Health Care Professionals』のカバーアート

Real Life Pharmacology - Pharmacology Education for Health Care Professionals

Real Life Pharmacology - Pharmacology Education for Health Care Professionals

著者: Eric Christianson PharmD; Pharmacology Expert and Clinical Pharmacist
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  • NSAID Drug Interactions
    2025/07/03
    NSAIDs can reduce the effectiveness of antihypertensive medications such as ACE inhibitors, ARBs, beta-blockers, and diuretics by promoting sodium and water retention and decreasing renal blood flow. Combining NSAIDs with anticoagulants or antiplatelet agents like warfarin or aspirin significantly increases the risk of gastrointestinal bleeding, due to additive effects on platelet inhibition and mucosal irritation. NSAIDs can elevate lithium levels and increase the risk of toxicity, as they reduce renal clearance of lithium by decreasing renal perfusion. Co-administration of NSAIDs with methotrexate can impair methotrexate elimination, leading to elevated levels and potential toxicity, especially at high methotrexate doses. When NSAIDs are used with corticosteroids, the risk of gastrointestinal ulcers and bleeding is greatly amplified due to synergistic impairment of gastric mucosal protection.
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    16 分
  • Lotrisone (Clotrimazole/Betamethasone) Pharmacology
    2025/06/26
    Lotrisone is a topical cream that contains a combination of clotrimazole, an antifungal, and betamethasone dipropionate, a corticosteroid. It is used to treat fungal skin infections such as athlete’s foot, jock itch, and ringworm that also involve inflammation or itching. Clotrimazole works by disrupting the fungal cell membrane, while betamethasone reduces redness, swelling, and itching. Lotrisone should not be used on the face, groin, or underarms for extended periods due to the risk of skin thinning and other steroid-related side effects.
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    14 分
  • Fluphenazine Pharmacology
    2025/06/19
    Fluphenazine is a high-potency typical antipsychotic that primarily acts as a dopamine D2 receptor antagonist in the mesolimbic pathway, reducing positive symptoms of schizophrenia. Extrapyramidal symptoms (EPS), such as dystonia, akathisia, and parkinsonism, are common due to potent D2 blockade in the nigrostriatal pathway. Neuroleptic malignant syndrome (NMS), though rare, is a life-threatening adverse effect characterized by rigidity, hyperthermia, altered mental status, and autonomic instability. CYP2D6 inhibitors (e.g., fluoxetine, paroxetine) can increase fluphenazine plasma concentrations, potentially raising the risk of toxicity and side effects. Concomitant use of fluphenazine with CNS depressants (e.g., alcohol, benzodiazepines) can enhance sedation and respiratory depression.
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    14 分

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