Journal of pain & palliative care pharmacotherapy
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Morphine, the most widely used mu-opioid analgesic for acute and chronic pain, is the standard against which new analgesics are measured. A thorough understanding of the pharmacokinetics of morphine is required in order to safely and effectively use this analgesic in a wide variety of patients with different levels of organ function. ⋯ These publications were reviewed and the literature summarized regarding unique and clinically important elements of morphine disposition relative to its parenteral administration (including intravenous, intramuscular, subcutaneous, epidural and intrathecal administration), absorption profile (immediate release, controlled release, and sublingual/buccal, and rectal administration), distribution, and its metabolism/excretion. Special populations, including infants, elderly, and those with renal/liver failure, have a unique morphine pharmacokinetic profile that must be taken into account in order to maximize analgesic efficacy and reduce the risk of adverse events.
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J Pain Palliat Care Pharmacother · Jan 2002
ReviewAnalgesia issues in palliative care: bone pain, controlled release opioids, managing opioid-induced constipation and nifedipine as an analgesic.
Some recent literature relevant to analgesia in palliative care is reviewed. Reports on clinical use of bisphosphonates for bone pain in cancer, controlled release opioids, selection of laxatives for opioid-induced constipation and the calcium channel blocker nifedipine as an analgesic are described.
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J Pain Palliat Care Pharmacother · Jan 2002
ReviewWhat is the most effective therapy for preventing NSAID-induced gastropathy?
Nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal toxicity is associated with morbidity and mortality, and given the very wide use of NSAIDs, is problematic and costly to society. Several options are now available to minimize gastrointestinal toxicity from NSAIDs. ⋯ The effectiveness of these strategies to minimize NSAID-induced gastrointestinal toxicity is summarized. In addition, their associated adverse effect profiles and costs are compared.
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J Pain Palliat Care Pharmacother · Jan 2002
Removing meperidine from the health-system formulary--frequently asked questions.
Meperidine is FDA-approved for relieving moderate to severe pain and has been widely used since its introduction in the 1930s. However, the drug is no longer considered a first-line analgesic. Many clinicians recommend that meperidine be removed from health-systems or that its use be restricted, due to concerns about adverse reactions, drug interactions, and normeperidine neurotoxicity. ⋯ The Drug Information Service developed this document to help pharmacists respond to prescribers' questions and to alleviate the prescribers' concerns about these changes. Information is provided comparing meperidine with other opioids, including dosage equivalency, pharmacodynamics, pharmacokinetics, cost, adverse effects, and drug interactions. Where available, alternatives to meperidine are suggested for various indications.