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Idiopathic intracranial hypertension (IIH) has been very rarely reported in patients treated with mesalazine. Following a recent review, warnings for IIH are being added to the product information for all mesalazine products…
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The annual #MedSafetyWeek campaign takes place from 3 to 9 November 2025. This year’s campaign theme is ‘we can all help make medicines safer.’
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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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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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Updated safety and educational materials are now available to support the implementation of the regulatory measures announced in the November 2023 National Patient Safety Alert and the September 2024 Drug Safety Update. They…
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Intrahepatic cholestasis of pregnancy (ICP) has been rarely reported in patients treated with azathioprine products and is believed to be a risk applicable to all drugs in the thiopurine class (azathioprine, mercaptopurine a…
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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 valp…
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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A retrospective observational study has indicated a possible association between valproate use by men around the time of conception and an increased risk of neurodevelopmental disorders in their children.
Inform male p…
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Support this initiative to explore whether there is a genetic basis of side effects associated with direct-acting oral anticoagulants (DOACs) and allopurinol.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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Topiramate is now contraindicated in pregnancy and in women of childbearing potential unless the conditions of a Pregnancy Prevention Programme are fulfilled. This follows a review by the MHRA which concluded that the use of…
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Taking warfarin and tramadol together can cause harmful drug interactions, which can raise the International Normalised Ratio (INR), and result in severe bruising and bleeding, which in some patients could be fatal.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices, and information about the publication of two recent Device Safety Information pages. The article also includ…
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A patient alert card is being introduced for men taking finasteride to help raise awareness of the risk of psychiatric side effects and sexual dysfunction, including the potential for sexual dysfunction to persist after trea…
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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There have been very rare reports of posterior reversible encephalopathy syndrome (PRES) and reversible cerebral vasoconstriction syndrome (RCVS) with pseudoephedrine.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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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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A summary of recent letters and notifications sent to healthcare professionals about medicines.
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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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A summary of recent letters and notifications sent to healthcare professionals about medicines, and a recent National Patient Safety Alert highlighting the risk of deaths and serious injuries from entrapment or falls relatin…
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We are providing an update on a retrospective observational study on the risk to children born to men who took valproate in the 3 months before conception and on the need for the re-analysis of the data from this study befor…
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A summary of recent letters and notifications sent to healthcare professionals about medicines.
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There have been a small number of reports of serious and life-threatening anticholinergic side effects associated with hyoscine hydrobromide patches, particularly when used outside the licence. Healthcare professionals, pati…
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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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Recent MHRA National Patient Safety Alerts to remove from service Philips Health Systems V60 and V60 Plus ventilators and to recall Emerade adrenaline auto-injectors from patients, pharmacies and wholesalers. We also provide…
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Healthcare professionals prescribing nitrofurantoin should be alert to the risks of pulmonary and hepatic adverse drug reactions and advise patients to be vigilant for the signs and symptoms in need of further investigation.
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A summary of recent letters and notifications sent to healthcare professionals about medicines.
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Prescribers and dispensers should use caution if switching patients between different metolazone preparations as the rate and extent of absorption of metolazone are formulation dependent. This can impact the bioavailability …
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A summary of recent letters and notifications sent to healthcare professionals about medicines.
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In view of data showing ongoing exposure to valproate in pregnancy, this article reminds healthcare professionals of the risks in pregnancy and the current Pregnancy Prevention Programme requirements, and provides informatio…
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices.
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Prescribers and dispensers should use caution if switching patients between different long-acting formulations of methylphenidate (Concerta XL, Medikinet XL, Equasym XL, Ritalin LA, and generics) as different instructions fo…
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A summary of recent letters and notifications sent to healthcare professionals about medicines
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A summary of recent letters and notifications sent to healthcare professionals about medicines, and a patient safety alert on mexiletine hydrochloride.
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We have initiated a new safety review into topiramate as a result of an observational study reporting an increased risk of neurodevelopmental disabilities in children whose mothers took topiramate during pregnancy.
Topir…
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A summary of recent letters and notifications sent to healthcare professionals about medicines.
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices
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A summary of recent letters and notifications sent to healthcare professionals about medicines and medical devices. Includes a recent recall of Accupro (quinapril hydrochloride) and advice on Xagrid (anagrelide hydrochloride…
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A new study has suggested pregabalin may slightly increase the risk of major congenital malformations if used in pregnancy. Patients should continue to use effective contraception during treatment and avoid use in pregnancy …
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Liver monitoring requirements for cladribine in the treatment of multiple sclerosis have been introduced following uncommon cases of serious liver injury. Advise patients to seek urgent medical attention if they develop any …
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A summary of recent letters, medicine recalls and notifications sent to healthcare professionals.
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A summary of recent letters, medicine recalls and notifications sent to healthcare professionals.
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We remind healthcare professionals that elderly patients are at an increased risk of adverse neurological and cardiac effects when being treated with haloperidol for delirium. The lowest possible dose of haloperidol should b…
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Fatal cases of tumour lysis syndrome (TLS) have been reported, some occurring in patients with chronic lymphocytic leukaemia receiving the lowest venetoclax dose used in the dose-titration schedule. For all patients, it is i…
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A summary of recent letters, medicine recalls and notifications sent to healthcare professionals.