The NHS has issued advice for anyone taking a widely prescribed medication, warning of possible “serious” side effects. If you are currently on atorvastatin, it’s important to be cautious about what other medicines or supplements you take alongside it.What Is Atorvastatin?Atorvastatin belongs to a class of drugs called statins, which help lower cholesterol levels. It is usually prescribed for people with high cholesterol to reduce the risk of heart disease, including heart attacks and strokes.NHS Issues Guidance on AtorvastatinYour GP may also recommend atorvastatin if you have a family history of heart disease or a long-term condition such as type 1 or type 2 diabetes or rheumatoid arthritis. As with any medicine, it’s vital to follow official guidance on how to take it safely.Atorvastatin: Interactions With Other MedicinesOn its website, the NHS lists certain “cautions with other medicines.” This means you should check that atorvastatin is safe to take alongside any other drugs or supplements.The NHS explained: “Some medicines can affect the way atorvastatin works and can increase the chances of you having serious side effects, such as muscle damage.” You should tell your doctor or pharmacist if you are taking any of the following:Antibiotics, including erythromycin, clarithromycin, rifampicin, or fusidic acidAntifungals, such as ketoconazole, voriconazole, or fluconazoleCertain HIV medicationsSome hepatitis C treatmentsWarfarin, used to prevent blood clotsCiclosporin, for psoriasis or rheumatoid arthritisColchicine, used for goutContraceptive pills, such as the combined pillBlood pressure or heart medicines, including verapamil, diltiazem, or amlodipineAmiodarone, used for irregular heartbeats (atrial fibrillation)If you need to take one of these medicines while on atorvastatin, your doctor may:Recommend a lower dose of atorvastatinSuggest a different statinAdvise pausing atorvastatin temporarilyThese are not all the drugs that can interact with atorvastatin. “For a full list, see the leaflet in your medicine packet or speak to your pharmacist,” the NHS said.The health service also advised checking with your doctor or pharmacist before taking supplements like St John’s wort or CoQ10 while on atorvastatin.Atorvastatin Common Side EffectsThe NHS lists these common side effects, which affect more than one in 100 people:Nausea or indigestionHeadachesNosebleedsSore throatCold-like symptoms, such as runny or blocked nose, or sneezingConstipation or bloatingDiarrhoea“Drinking large amounts of alcohol regularly increases the risk of side effects and liver problems while taking atorvastatin,” the NHS added. “If side effects make you want to stop taking the medicine, speak to your doctor first. They may be due to another cause, and your doctor can suggest lowering the dose or switching medicines.”Atorvastatin Serious Side EffectsStop taking atorvastatin and contact a doctor or call 111 immediately if you experience:Unexplained muscle pain, tenderness, weakness, or cramps, which could indicate muscle breakdown and kidney damageYellowing of the whites of your eyes or your skin, pale stools, or dark urine, which may signal liver problemsSkin rash with pink or red blotches, particularly on the palms or soles, possibly indicating erythema multiformeSevere abdominal pain, a potential sign of acute pancreatitisCough, shortness of breath, or unexplained weight loss, which could indicate lung diseaseWeakness in your arms or legs that worsens with activity, double vision, drooping eyelids, difficulty swallowing, or shortness of breath, which may be a sign of myasthenia gravis.DISCLAIMER: This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions regarding a medical condition or before making changes to your sleep habits or lifestyle.