Which Drug May Cause Toxicity When Taken With Grapefruit Juice?

by | Last updated on January 24, 2024

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Examples of common medications that interact with grapefruit juice include certain statin cholesterol drugs such as

atorvastatin (Lipitor)

, lovastatin, simvastatin (Zocor), felodipine (Plendil) and other calcium channel blockers, clarithromycin (Biaxin), and loratadine (Claritin).

Does grapefruit juice cause drug toxicity?

One whole grapefruit, or a small glass (200 mL, 6.8 US fl oz) of grapefruit juice,

can cause drug overdose toxicity

. Fruit consumed three days before the medicine can still have an effect.

What drugs are bad with grapefruit?

Grapefruit might interact with some “statins” including

lovastatin (Mevacor)

, simvastatin (Zocor), and atorvastatin (Lipitor). Grapefruit juice does not interact with other “statins” including pravastatin (Pravachol), fluvastatin (Lescol), and rosuvastatin (Crestor).

What drugs does grapefruit juice potentiate?

Many medications can be potentiated by grapefruit juice or grapefruit. Some of the more common medications include: Some

calcium channel blockers

that treat high blood pressure or angina, like Procardia (nifedipine) or Plendil (felodipine)

What two food drug interactions may occur after drinking grapefruit juice?


Statins

and Grapefruit

Statins are highly effective cholesterol-lowering drugs. Unfortunately, says Zive, “Drinking grapefruit juice or eating fresh grapefruit can increase the amount of some statins in your blood and lead to potentially greater side effects of these drugs.”

Why is grapefruit bad for high blood pressure?


Grapefruit contains compounds that may interfere with how your body absorbs some drugs

, including some blood pressure medicines. It can leave too much or too little of the drug in your bloodstream, which may be dangerous. Always ask your doctor or pharmacist if grapefruit could affect the medicine you’re taking.

How much grapefruit juice causes a drug interaction?


One whole grapefruit or 200 mL of grapefruit juice

is sufficient to cause clinically relevant increased systemic drug concentration and subsequent adverse effects.

Is it OK to eat grapefruit with blood pressure medicine?

Though

grapefruit does not interfere with most blood pressure medications

, it can cause a few medications to overcorrect blood pressure.

Why can’t you have grapefruit with blood pressure medicine?


Calcium channel blockers

They’re used as part of the treatment of conditions such as high blood pressure (hypertension) and coronary heart disease. Grapefruit juice interacts with some calcium channel blockers and increases the level of the medicine in your blood.

What blood pressure meds should not be taken with grapefruit?

  • Some statin drugs to lower cholesterol, such as Zocor (simvastatin) and Lipitor (atorvastatin).
  • Some drugs that treat high blood pressure, such as Procardia and Adalat CC (both nifedipine).

What happens if you drink too much grapefruit juice?

Eating a grapefruit or consuming its juices while taking certain medications could lead to

gastrointestinal bleeding

, kidney failure, depressed breathing and sudden death, warns a new paper in the Canadian Medical Association Journal.

Does grapefruit juice make medicine stronger?

Compounds in grapefruit called

furanocoumarin chemicals are the cause of the increased medication potency

. These chemicals interact with the cytochrome P450 3A4 (CYP3A4) enzyme, found in the small intestine and liver, which partially inactivates many medications under normal circumstances.

Does grapefruit juice make clonazepam stronger?

Grapefruit juice: Avoid drinking grapefruit juice while you are taking this medication as

it can increase the levels of clonazepam

in your blood.

Is grapefruit good for high blood pressure?

1. Citrus fruits. Citrus fruits, including grapefruit, oranges, and lemons, may

have powerful blood-pressure-lowering effects

. They’re loaded with vitamins, minerals, and plant compounds that may help keep your heart healthy by reducing heart disease risk factors like high blood pressure ( 4 ).

Which medicines should not be taken together?

  • Dangerous duo: Tylenol and multi-symptom cold medicines. …
  • Dangerous duo: Any combo of ibuprofen, naproxen, and aspirin. …
  • Dangerous duo: Antihistamines and motion-sickness medications. …
  • Dangerous duo: Anti-diarrheal medicine and calcium supplements. …
  • Dangerous duo: St.

What fruits interact with drugs?

Medicines can interact with

whole fruit, fruit pulp or fruit extracts

. Fruit of concern include orange, pomelo, pomegranate, cranberry, red/purple grape, apple, and grapefruit. Patients should be informed about the risk of interactions from consuming fruit.

Sophia Kim
Author
Sophia Kim
Sophia Kim is a food writer with a passion for cooking and entertaining. She has worked in various restaurants and catering companies, and has written for several food publications. Sophia's expertise in cooking and entertaining will help you create memorable meals and events.