The NHS has issued a warning that patients taking amitriptyline should seek urgent medical help if they experience sudden eye pain, particularly when accompanied by vision changes or swelling and redness around the eye. This rare but serious side effect requires immediate attention, and individuals are advised to call a doctor or NHS 111 without delay.
What Is Amitriptyline?
Amitriptyline is a prescription medication primarily used to treat depression. It is also commonly prescribed at lower doses for nerve pain and to help prevent migraines. The drug works by increasing serotonin levels in the brain, which can improve mood and alleviate certain types of pain.
Common Side Effects
According to the NHS, most people taking amitriptyline experience either no side effects or only mild ones. Common side effects, affecting more than one in 100 individuals, include dry mouth, constipation, dizziness, headaches, drowsiness, and difficulty urinating. These are generally manageable and often improve as the body adjusts to the medication.
Serious Side Effects Requiring Urgent Action
The NHS emphasizes that certain symptoms demand immediate medical attention. These include a fast or irregular heartbeat, yellowing of the skin or whites of the eyes, severe constipation with a swollen stomach and vomiting, persistent headaches accompanied by nausea, confusion or muscle weakness, problems passing urine, and sudden eye pain with vision changes or swelling around the eye. Anyone experiencing these symptoms should contact a doctor or call NHS 111 straightaway.
When to Call 999
In more severe cases, the NHS advises calling 999 without delay. This includes signs of a stroke, such as weakness on one side of the body, difficulty speaking, or sudden confusion. Emergency assistance is also required for seizures, loss of consciousness, symptoms of a heart attack, or thoughts of self-harm. These situations are considered life-threatening and require immediate medical intervention.
Do Not Stop Amitriptyline Abruptly
Patients are strongly advised not to stop taking amitriptyline without consulting their doctor, even if side effects occur. Abruptly discontinuing the medication can lead to withdrawal symptoms, which may include nausea, headache, and anxiety. Any changes to treatment should be carried out under medical supervision to ensure safety and minimize risks.
Reporting Side Effects
Anyone concerned about side effects from amitriptyline should speak to their GP or pharmacist. Suspected side effects can also be reported through the UK's Yellow Card scheme, which helps regulators monitor the safety of medicines. This system is crucial for identifying potential risks and ensuring patient safety.
