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Possible illicit drug use should be considered when prescribing medicines that have the potential to interact adversely.
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Rare occurrence of serious allergic reactions should not preclude use of parenteral thiamine in patients who need treatment by this route of administration.
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Further evidence that the cardiovascular risk with diclofenac is higher than other non-selective NSAIDs and similar to the selective COX-2 inhibitors.
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Following a review by the Commission on Human Medicines (CHM), the marketing authorisation (licence) for levothyroxine 100 microgram tablets manufactured by Teva has been suspended.
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Patients should be reminded and reassured that there is no evidence that taking paracetamol during pregnancy causes autism in children. Paracetamol is recommended as the first-choice pain reliever for pregnant women, used at…
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Where possible, use an appropriate alternative therapy for patients at increased risk of thrombosis.
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Update on managing risk of misuse.
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Restricted dose and duration of use.
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Benefits of these medicines used in conjunction with inhaled corticosteroids (ICS) in the control of asthma symptoms in children outweigh any apparent risks.
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As the safety of COVID-19 antivirals in pregnancy has not been established, please report any pregnancies which occur during use of an antiviral, including paternal use, to the UK COVID-19 Antivirals Pregnancy Registry. This…
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Patients with epilepsy should not take products that contain St John’s wort as any antiepileptic medicine may interact with St John’s wort.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices and details of two recent MHRA National Patient Safety Alerts to remove from service Philips Health Systems V…
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Do not prescribe ergots to patients who have had fibrosis in the heart, lungs, or abdomen.
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Surgeons reminded to have competent personnel and emergency facilities available for at least 1 hour after administration of the blue dye.
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Patients who require a liquid oral formulation of a β-agonist should be switched to a more-selective short-acting β2-agonist such as salbutamol or terbutaline.
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Evidence indicates risks outweigh benefits.
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A summary of letters and drug alerts recently sent to healthcare professionals.
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Review by two specialists remains in place for patients initiating valproate under 55 years of age but the Commission on Human Medicines (CHM) has advised that it will not be required for men (or males) currently taking valproate.…
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Rare cases of atypical femoral fracture with long-term use.
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Implementation of measures to regulate sales, together with the additional voluntary actions overseen by the pharmacy profession, has made an important contribution to managing the risk of misuse of pseudoephedrine and ephed…
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Guidance has been published on monitoring of patients on warfarin and other anticoagulants during the COVID-19 pandemic.
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Recent information relating to COVID-19 vaccines and medicines that has been published since the February 2023 issue of Drug Safety Update, up to 21 March 2023.
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Do not use codeine in children under 12 as it is associated with a risk of respiratory side effects. Codeine is not recommended for adolescents (12 to 18) who have problems with breathing.
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Should not be used for cough under 18 years
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Sales restrictions introduced in 2008 continue to be successful in managing the risk of misuse of pseudoephedrine and ephedrine.
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There is a small increase in the risk of Guillain-Barré syndrome following vaccination with Abrysvo (Pfizer respiratory syncytial virus (RSV) vaccine) and Arexvy (GSK RSV vaccine) in adults aged 60 years and older. Healthca…
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The non-identical nature of biological medicines and vaccines means it is very important that safety surveillance is carried out on a brand/product-specific basis.
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Unless there are exceptional circumstances, valproate-containing medicines must always be dispensed in the manufacturer’s original full pack.
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Evidence does not support any increased risk of cancer in patients who use these medicines.
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Denosumab is associated with a risk of osteonecrosis of the jaw, osteonecrosis of the external auditory canal has also been reported with denosumab.
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Calcitonin-containing medicines should no longer be used in treatment of osteoporosis.
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The authorised dose regimen for N-acetylcysteine (NAC) in paracetamol overdose is 3 consecutive bags given intravenously over 21 hours. Prescribing information is being updated to advise that continued treatment with NAC may…
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A clinically significant interaction between carbapenems and valproic acid results in reduced valproate plasma concentrations with potential for inadequate seizure control. Concomitant use of these agents is not recommended,…
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Recent information relating to COVID-19 vaccines and medicines that has been published since the April 2022 issue of Drug Safety Update, up to 13 May 2022.
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The tighter controls being introduced to minimise risk of overuse and or addiction of painkillers containing codeine or dihydrocodeine.
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Mixing drugs together, where one is not a vehicle for the administration of the other, creates an unlicensed medicine.
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All products to be named and prescribed as caffeine citrate.
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A summary of advice recently issued by the MHRA relating to coronavirus (COVID-19), up to 16 February 2021.
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Strengthening surveillance of medicines throughout the EU
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Recent information relating to COVID-19 vaccines and medicines that has been published since the January 2022 issue of Drug Safety Update, up to 11 February 2022.
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Continued monitoring of medicines with a black triangle status.
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Aluminium can be leached from glass after contact with calcium gluconate solution, leading to a risk of exposure to aluminium. Accumulation of aluminium might have adverse effects on bone mineralisation and neurological deve…
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In addition to the 3 risk-based categories of antiepileptic drugs, patient-related factors should be considered when deciding whether it is necessary to maintain continuity of supply for a specific product.
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New safety and educational materials have been introduced for men and women and healthcare professionals to reduce the harms from valproate, including the significant risk of serious harm to the baby if taken during pregnanc…
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Updated advice on use of nicorandil as second-line treatment for stable angina - some ulcers may progress to complications unless treatment is stopped.
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Healthcare professionals prescribing dupilumab should be alert to the risks of ocular reactions. New onset or worsening ocular symptoms require prompt review. Referral for ophthalmological examination should be made as appro…
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Spontaneous reporting on the Yellow Card portal has provided important information in the identification of PML associated with some drugs.
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Following a review of the risks associated with use of opioid medicines for non-cancer pain, the Commission on Human Medicines (CHM) has recommended that fentanyl transdermal patches are contraindicated in opioid-naive patients in the UK.…
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Information on the newly launched Safer Medicines in Pregnancy and Breastfeeding Consortium and a new report on optimising data on medicines used during pregnancy.