Articles: acetaminophen.
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Health Technol Assess · May 2009
Randomized Controlled Trial Multicenter Study Comparative StudyParacetamol and ibuprofen for the treatment of fever in children: the PITCH randomised controlled trial.
To establish the relative clinical effectiveness and cost-effectiveness of paracetamol plus ibuprofen compared with paracetamol and ibuprofen separately for time without fever, and the relief of fever-associated discomfort in young children who can be managed at home. ⋯ Young children who are unwell with fever should be treated with ibuprofen first, but the relative risks (inadvertently exceeding the maximum recommended dose) and benefits (extra 2.5 hours without fever) of using paracetamol plus ibuprofen over 24 hours should be considered. However, if two medicines are used, it is recommended that all dose times are carefully recorded to avoid accidentally exceeding the maximum recommended dose. Manufacturers should consider supplying blank charts for this purpose. Use of both medicines should not be discouraged on the basis of cost to either parents or the NHS. Parents and clinicians should be aware that fever is a relatively short-lived symptom, but may have more serious prognostic implications than the other common symptom presentations of childhood.
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Randomized Controlled Trial Multicenter Study Comparative Study
OTC analgesics in headache treatment: open-label phase vs randomized double-blind phase of a large clinical trial.
To compare the superior efficacy of the fixed combination of acetylsalicylic acid, paracetamol, and caffeine over the single substances, which was observed in the randomized, double-blind phase of the clinical trial, with the efficacy of the respective usual nonprescription medication taken by the patients in the open-label pre-phase of the same study. ⋯ Time course of PID after intake of the patient's usual medication was very similar to the time course of PID after intake of the randomized study medication. After 2 hours, pain reduction was on average 43.0, 38.2, 38.1, and 37.7 mm as assessed on the visual analog scale in the group of patients who took their usual triple combination containing acetylsalicylic acid, paracetamol, and caffeine, the single agents acetylsalicylic acid, paracetamol, and ibuprofen, respectively, in the open-label phase. The corresponding mean pain reduction was 44.7, 40.7, and 39.5 mm in patients allocated to the triple combination containing acetylsalicylic acid, paracetamol, and caffeine, the single agents acetylsalicylic acid, and paracetamol, respectively, in the randomized, double-blind phase.
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Randomized Controlled Trial
A randomized, controlled study on the influence of acetaminophen, diclofenac, or naproxen on aspirin-induced inhibition of platelet aggregation.
Nonsteroidal anti-inflammatory drugs (NSAID) may interfere with aspirin (acetylsalicylic acid) and increase the risk for cardiovascular events. The clinical relevance is uncertain. The aim of this study was to analyse the influence of a co-administration of aspirin and NSAID on platelet aggregation. ⋯ After 4 days of treatment platelet aggregation was similarly inhibited by all combinations. We conclude that a co-administration of NSAID and aspirin may interfere with platelet inhibition at the beginning of a treatment with an increase of naproxen and a decrease of diclofenac. This effect is lost after 4 days, suggesting that a regular daily co-administration of NSAID does not have an influence on platelet inhibition by aspirin.
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Eur. J. Clin. Pharmacol. · Apr 2009
Randomized Controlled Trial Multicenter Study Comparative StudyOnset of analgesia with sodium ibuprofen, ibuprofen acid incorporating poloxamer and acetaminophen--a single-dose, double-blind, placebo-controlled study in patients with post-operative dental pain.
To compare the onset of action and efficacy of sodium ibuprofen (ibuprofen sodium dihydrate) and ibuprofen acid incorporating poloxamer (ibuprofen/poloxamer) with that of acetaminophen and placebo in patients with post-operative dental pain. ⋯ Compared with acetaminophen, sodium ibuprofen was associated with significantly greater analgesic efficacy, pain relief in a greater proportion of patients and greater patient satisfaction.
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Randomized Controlled Trial
Preemptive analgesic effects of intravenous paracetamol in total abdominal hysterectomy.
Paracetamol is primarily thought to be a cyclooxygenase inhibitor acting through the central nervous system. Indirect effects of paracetamol are through the serotoninergic system as a non-opioid analgesic. In this study, total abdominal hysterectomy patients were given intravenous (iv) paracetamol 1 g preoperatively or intraoperatively to assess its postoperative analgesic effects. ⋯ In total abdominal hysterectomy, preemptive iv paracetamol 1 g provided good quality postoperative analgesia, with decreased consumption of morphine and minimal side effects.