Angina is on the increase as people live longer. It is the most common symptom of ischaemic heart disease and occurs when the arteries are no longer able to supply the heart with enough blood to meet its demands. Treatment aims to restore the balance between oxygen supply and demand, to relieve the pain as quickly as possible and prevent further angina attacks, to treat the risk factors, limit the progression of coronary artery disease and reduce the risk of a heart attack. Procoralan (ivabradine) works by specifically inhibiting the If or ‘funny’ channel in the sinoatrial node of the heart (also known as the cardiac pacemaker) to reduce the resting heart rate, matching the efficacy of beta-blockers without their side-effects.