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Establish hepatitis B status before initiating carfilzomib and in patients with unknown hepatitis B virus serology who are already being treated with carfilzomib.
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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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Guidance has been published about thalidomide, lenalidomide, and pomalidomide and the use of remote consultations and home pregnancy testing for patients taking them during COVID-19.
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Modafinil potentially increases the risk of congenital malformations when used in pregnancy. Modafinil should not be used during pregnancy and women of childbearing potential must use effective contraception during treatment…
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Patients with complete or partial dihydropyrimidine dehydrogenase (DPD) deficiency are at increased risk of severe and fatal toxicity during treatment with these medicines. All patients should be tested for DPD deficiency be…
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Advise patients treated with ingenol mebutate gel to be vigilant for new skin lesions and to seek medical advice immediately should any occur. Use with caution in patients with a history of skin cancer.
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Recent epidemiological studies suggest exposure to ondansetron during the first trimester of pregnancy is associated with a small increased risk of the baby having a cleft lip and/or cleft palate.
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Systematic reviews and meta-analyses of randomised controlled trials have highlighted a dose-dependent increased risk of atrial fibrillation in patients with established cardiovascular diseases or cardiovascular risk factors…
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Non-arteritic anterior ischemic optic neuropathy (NAION), a condition that can cause sudden deterioration in vision, usually in one eye at a time, has been very rarely reported in association with semaglutide in the treatmen…
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Cases of serotonin syndrome have been identified in associated with bupropion, especially in overdose or when bupropion is administered with other drugs with a serotonergic effect.
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Sildenafil is not authorised for use in pregnancy for the treatment of intrauterine growth restriction. The STRIDER clinical trial, which was studying the use of sildenafil in pregnancy for intrauterine growth restriction, h…
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Monitor serum phosphate levels in patients treated with multiple high-dose administrations, or those on long-term treatment, and in those with pre-existing risk factors for hypophosphataemia. Re-evaluate ferric carboxymaltos…
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There have been reports of severe, sometimes fatal, cases of cardiac failure in patients treated with crizotinib.
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A review is being undertaken by the Medicines and Healthcare products Regulatory Agency with advice from the Commission on Human Medicines and the Isotretinoin Expert Working Group due to concerns about the possible associat…
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We continue to receive a substantial number of serious and fatal adverse event reports for warfarin through our Yellow Card Scheme.
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More than one treatment course is authorised only in women who are not eligible for surgery, and liver function monitoring is to be carried out in all women treated with Esmya. Before initiation, discuss with women the rare …
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Epimax Ointment and Epimax Paraffin-Free Ointment can harm the eyes if used on the face. Do not prescribe these ointments for use on the face. Tell patients to wash their hands and avoid touching their eyes after using these…
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We remind healthcare professionals that accidental use of glucose-containing solutions as flush fluid for arterial lines may contaminate blood samples and result in falsely high glucose readings. This may lead to inappropria…
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We remind you to provide clear information to patients and caregivers regarding risk of accidental patch transfer and ingestion of patches, and need for appropriate disposal of patches.
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Updates have been made to the magnitude of the known risk of infantile hypertrophic pyloric stenosis following exposure to erythromycin in infancy as a result of new epidemiological data. The risk is particularly increased i…
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Fingolimod is associated with an increased risk of major congenital malformations including cardiac, renal, and musculoskeletal defects, when used in pregnancy. Women of childbearing potential must use effective contraceptio…
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Advice for healthcare professionals regarding the withdrawal of pholcodine-containing medicines from the market.
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In autoimmune conditions and some cancer therapies, methotrexate should be taken once a week; however, we continue to receive reports of inadvertent overdose due to more frequent dosing (including daily administration). New …
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Important to inquire if patients are taking herbal 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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…Please report adverse reactions to the Yellow Card scheme and promote vigilance among patients.
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Psychological side effects such as anxiety, low mood, sleep disturbance, poor concentration, and forgetfulness have been infrequently reported in people with cystic fibrosis treated with Kaftrio. Healthcare professionals sho…
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Fluoroquinolones should only be used after careful benefit-risk assessment and after consideration of other therapeutic options in patients at risk for heart valve regurgitation (incompetence).
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Advise patients to tell their health professional if they experience severe eye irritation.
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Erythromycin has been associated with events secondary to QT interval prolongation such as cardiac arrest and ventricular fibrillation. Erythromycin should not be given to patients with a history of QT interval prolongation…
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We have issued a National Patient Safety Alert following serious reports of harm associated with insulin leakage during use of the Accu-Chek Insight Insulin pump with NovoRapid PumpCart prefilled insulin cartridges. Patients…
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Train patients to place the Braltus capsule in the correct chamber of the Zonda inhaler. We have received reports of patients who have inhaled a Braltus capsule from the mouthpiece into the back of the throat, resulting in c…
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We remind healthcare professionals that isotretinoin should only be used for severe forms of acne resistant to adequate courses of standard therapy with systemic antibacterials and topical therapy. Prescription of isotretino…
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Globally, there has been a very small number of reports of new-onset or aggravation of pre-existing myasthenia gravis with atorvastatin, pravastatin, lovastatin, fluvastatin, simvastatin, rosuvastatin and pitavastatin (singl…
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Prescribers should be aware of the risk of potentiation of radiation toxicity with vemurafenib when given before, during, or after radiotherapy
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There is a risk of harmful drug interactions with the ritonavir component of the COVID-19 treatment Paxlovid▼ due to its inhibition of the enzyme CYP3A, which metabolises many commonly used drugs. Prescribers should obtain a…
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Risk of meningioma with cyproterone acetate increases with increasing cumulative dose. Use of cyproterone is contraindicated in patients with previous or current meningioma (for all indications) and should only be considered…
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Measure serum immunoglobulin levels if recurrent infections develop. Consider bronchiectasis or pulmonary fibrosis if patients develop persistent respiratory symptoms.
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Guidance has been published to support initiation of valproate in female patients and for annual review and pregnancy testing during the coronavirus pandemic.
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Advice for healthcare professionals on the reclassification of codeine linctus to a prescription-only medicine (POM), following a public consultation.
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Healthcare professionals should advise patients who need re-vaccination with Pneumovax II to expect a more intense reaction than after their first vaccination.
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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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The Isotretinoin Expert Working Group of the Commission on Human Medicines has made recommendations to strengthen the safety of isotretinoin treatment. Recommendations include new warnings, the need for consistent monitoring…
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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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Healthcare professionals and patients are reminded of the risk of severe asthma attacks and increased mortality associated with overuse of SABA with or without anti-inflammatory maintenance therapy in patients with asthma. H…
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Take particular care when prescribing or dispensing medicines that could be confused with others (ie, they sound-alike or look-alike).
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We have strengthened the safe use of isotretinoin through the introduction of additional oversight of the initiation of isotretinoin in patients under 18 years and through improved assessment and monitoring of mental health …
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We are aware of reports of serious liver injuries and deaths in patients with primary biliary cholangitis with pre-existing moderate or severe liver impairment who were not adequately dose-adjusted. Follow dose reduction and…
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Oral lidocaine-containing products for infant teething are only to be available under the supervision of a pharmacist so that parents and caregivers can receive guidance about managing infant teething symptoms. Non-medicinal…
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Serious liver injury has been reported during treatment with pirfenidone in the first year after initiation, including 2 cases with a fatal outcome. Measure alanine aminotransferase (ALT), aspartate aminotransferase (AST), a…