Articles: acetaminophen.
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Many epidemiological studies have reported a positive association between prenatal exposure to paracetamol and childhood wheezing and asthma. We investigated whether the link between prenatal analgesic exposure and asthma/wheeze is specific to paracetamol, and whether it is causal or confounded. Using linked Swedish health register data we investigated the relation between various prescribed analgesics in pregnancy and the risk of childhood asthma/wheeze in a population of 492 999, and used negative paternal control and sibling comparison approaches to explore unmeasured confounding. ⋯ The results of the paternal control analysis did not suggest the presence of unmeasured confounding by genetics or shared environment. However, the sibling control analysis broadly suggested that associations between prenatal exposure to the analgesics and asthma/wheeze were confounded by specific maternal factors (e.g. for asthma/wheeze at age 4 years: adjusted OR 0.91 (95% CI 0.62-1.31), 0.50 (95% CI 0.17-1.45) and 0.80 (95% CI 0.50-1.29) for opioids, antimigraine drugs and paracetamol, respectively). We propose that analgesic use in pregnancy does not cause childhood asthma/wheeze and that the association is confounded by unmeasured factors that are intrinsic to the mother, such as chronic pain or anxiety.
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In 2014, the Italian Medicines Agency (AIFA) amended the summary of product characteristics of codeine-containing medications limiting their use for maximum three days. This study attempted to clarify the impact of AIFA intervention on prescribing trends and appropriateness of use of codeine-containing medications and other opioids. ⋯ The use of paracetamol-codeine combination was effectively decreased in Italy because of AIFA intervention. Instead, prescriptions of tapentadol and oxycodone-naloxone stably increased over the study period irrespective of regulatory intervention. Given that the choice of the most appropriate opioid therapy is not straightforward, especially in elderly and/or comorbid patients, general practitioners should consider carefully alternative therapies on the bases of regulatory interventions.
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Am. J. Obstet. Gynecol. · Apr 2019
Randomized Controlled TrialIntravenous acetaminophen vs saline in perioperative analgesia with laparoscopic hysterectomy.
Opioids are effective for the treatment of postoperative pain but can cause nausea and are associated with dependency with long-term use. Nonopioid medications such as acetaminophen offer the promise of decreasing these nondesirable effects while still providing patient comfort. ⋯ There was no difference between acetaminophen and placebo groups in postoperative pain, satisfaction scores, or opioid requirements. Given the relatively high cost ($23.20 per dose in our study), lack of benefit, and available oral alternatives, our results do not support routine use during hysterectomy.
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Randomized Controlled Trial Multicenter Study
Randomized Clinical Trial of Intravenous Acetaminophen as an Analgesic Adjunct for Older Adults With Acute Severe Pain.
Older adults are at risk for undertreatment of pain. We examined intravenous (IV) acetaminophen as an analgesic adjunct to IV opioids in the care of older emergency department (ED) patients with acute severe pain. ⋯ In this randomized clinical trial, the addition of IV acetaminophen to IV hydromorphone as an adjunctive analgesic for acute, severe, pain in older adults provided neither clinically nor statistically superior pain relief when compared to hydromorphone alone within the first hour of treatment.