![]() ![]() ![]() Because of this, the researchers suggested that drinking grapefruit juice may lead to an increased risk of lactic acidosis in people taking metformin. This, in turn, caused the increase in lactic acid production. The researchers in this study guessed that grapefruit juice enhanced metformin accumulation in the liver. Researchers found that there was an increase in the amount of lactic acid production in the rats that were exposed to grapefruit juice and metformin. Some rats were exposed to grapefruit juice and metformin. However, there’s no proof that grapefruit interacts with metformin.Īn older study from 2009 discussed the effects of grapefruit with metformin in nondiabetic rats. There’s limited information available on how having grapefruit while taking metformin affects people with type 2 diabetes.Īlthough grapefruit juice is a good source of potassium and vitamin C, it can interact with some medications, according to the FDA. It’s unprocessed by your body and expelled in your urine. It’s important to know that metformin isn’t broken down by the same enzyme as the drugs listed above. When starting on a new medication, it’s very important that you ask the doctor or pharmacist if you’re able to consume grapefruit or grapefruit-related products. These medications can include atorvastatin (Lipitor) and buspirone (BuSpar). cyclosporine (Sandimmune, Neoral, Gengraf)Ĭertain medications are classified as D-level interactions, which means doctors or healthcare professionals should consider changing therapy.budesonide (Entocort, Uceris, Rhinocort Allergy).Drugs classified as an X-level interaction with grapefruit can include: This is because some interactions are classified as much more serious than others.Ĭertain medications are classified as an X-level interaction, which means the interactions are the most serious and you should avoid these combinations. Interaction with grapefruit juice is drug-specific, not drug category-specific.Īdditionally, the severity of the interaction can vary as well. Grapefruit juice doesn’t have an effect on every drug in the categories above. some anti-anxiety drugs, such as buspirone (BuSpar).antihistamines, such as fexofenadine (Allegra).drugs that treat abnormal heart rhythms, such as amiodarone (Pacerone, Cordarone).corticosteroids used to treat Crohn’s disease or ulcerative colitis, such as budesonide (Entocort EC, Uceris).immunosuppressive drugs, such as cyclosporine (Sandimmune, Neoral, Gengraf).drugs for high blood pressure, such as nifedipine (Procardia, Adalat CC).statins, such as simvastatin (Zocor) and atorvastatin (Lipitor).This can happen with certain medications when they interact with the chemicals in grapefruit.Īccording to the FDA, the following types of drugs can have a negative interaction with grapefruit: This means that you receive a little less of the drug in your bloodstream than the amount you initially consumed.īut when the enzyme is inhibited (prevented from working as it should) a dramatically larger amount of the drug makes its way into your bloodstream. ![]() Typically, when you take a drug orally, it’s broken down slightly by enzymes before it reaches the bloodstream. This enzyme helps break down the medication you take. Some of the chemicals found in grapefruit can bind to and inactivate an enzyme in the body that’s found in your intestines and liver. All forms of grapefruit - including freshly squeezed juice, frozen concentrate, pulp, and the whole fruit - can lead to drug interaction. Of these drugs, 43 of them can lead to serious adverse effects. There are more than 85 drugs that are known to interact with grapefruit. How drug interactions with grapefruit work ![]()
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