It can increase the effect of warfarin on your blood, making you bleed more easily.

They're given to people at high risk of getting clots, to reduce their chances of serious conditions such as strokes and heart attacks.ĭo not drink grapefruit juice if you're taking warfarin. AnticoagulantsĪnticoagulants are medicines that help to prevent blood clots. Grapefruit juice does not affect diltiazem. If you're taking any of the medicines below, seek advice from your pharmacist or doctor if you wish to include grapefruit or grapefruit juice in your diet. Grapefruit juice interacts with some calcium channel blockers and increases the level of the medicine in your blood. They're used as part of the treatment of conditions such as high blood pressure (hypertension) and coronary heart disease.

Calcium channel blockersĬalcium channel blockers are medicines that relax the muscles that make up the walls of your arteries. Grapefruit juice increases the level of simvastatin in your blood and makes side effects more likely.Ītorvastatin interacts with grapefruit juice if you drink large quantities (more than 1.2 litres daily), but an occasional glass is thought to be safe.Ĭurrently, healthcare professionals advise it is safe to drink grapefruit juice and eat grapefruit if you're taking other types of statins. Grapefruit or grapefruit juice affects some statins.ĭo not drink grapefruit juice if you're taking simvastatin. Statins are medicines that lower your cholesterol. Do not stop taking your medicine without advice. If your usual diet includes grapefruit or grapefruit juice and you've been prescribed a medicine that's affected by grapefruit, speak to your GP or pharmacist. This can increase the risk of side effects or alter the effect the medicine has. In most cases, it increases the level of the medicine in your blood. Eating grapefruit or drinking grapefruit juice can affect some medicines.

Grapefruit juice and medications