Millions of Britons taking beta blockers are being urged to contact their GP if they experience troublesome side effects that persist for several days. The NHS advises that common side effects include tiredness, dizziness, and lightheadedness, which may require treatment if they do not subside.
Beta blockers are widely prescribed for heart conditions such as irregular heart rhythms, angina, and high blood pressure, as well as for anxiety. According to the British Heart Foundation, over 50 million prescriptions are issued annually in the UK. These medications work by blocking the effects of hormones like adrenaline, thereby reducing heart rate.
The NHS warns that patients should seek medical advice straight away if they develop serious side effects, such as shortness of breath, swelling of the ankles or feet, or a slow heart rate. However, this is not a complete list, and patients are advised to read the patient information leaflet for full details.
Beta blockers are not suitable for everyone. Patients should inform their doctor if they have asthma, low blood pressure, or certain heart conditions, as well as if they are pregnant, planning a pregnancy, or breastfeeding. The NHS stresses that patients should not stop taking beta blockers suddenly without consulting a doctor, as this could worsen their condition.
