Drug Interaction Report

Ritonavir may increase the blood levels of elacestrant. This may increase the risk of side effects such as muscle pain, nausea, increased cholesterol, increased liver enzymes, fatigue, decreased hemoglobin, and vomiting. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Elacestrant should be taken with food at approximately the same time each day. Grapefruit, grapefruit juice, and supplements that contain grapefruit, however, may increase the blood levels of elacestrant, which may increase the risk of side effects such as muscle pain, nausea, increased cholesterol, increased liver enzymes, fatigue, decreased hemoglobin, and vomiting. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Ritonavir should be taken with food to lessen gastrointestinal side effects. It is important that you take this medication exactly as prescribed by your doctor. Do not change your treatment or stop treatment without first talking to your doctor.

Food may affect the absorption of lopinavir-ritonavir (brand name Kaletra) depending on whether you are taking the oral solution or the tablet. The oral solution should be taken with food to enhance absorption and help it work better. The tablet formulation can be take with or without food. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.