Drug Interaction Report

Consumer information for this interaction is not currently available.

GENERALLY AVOID: Coadministration of inhibitors of the breast cancer resistance protein (BCRP) transporter with alpelisib may increase the plasma concentrations and risk of adverse effects of alpelisib, which is a substrate of this efflux transporter. Alpelisib has been identified as a substrate of BCRP in in vitro studies. However, clinical data are not available.

MANAGEMENT: If coadministration with BCRP inhibitors is required, patients should be closely monitored for alpelisib-related adverse reactions, including hyperglycemia, diarrhea, rash, acute kidney injury, abdominal pain, and anemia. Some authorities recommend coadministration of alpelisib with BCRP inhibitors be avoided whenever possible (US).

Food significantly enhances the absorption of alpelisib. You should take each dose of alpelisib at the same time each day with a meal. Taking it on an empty stomach may lead to inadequate blood levels and reduced effectiveness of the medication. Talk to your doctor if you have questions or have difficulty taking alpelisib with food. 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.

Consumer information for this interaction is not currently available.

MONITOR: Smoking and alcohol consumption during therapy with vadadustat may increase the risk of gastrointestinal erosions. Serious erosions, including gastrointestinal bleeding and the need for red blood cell transfusions, have been reported during vadadustat clinical trials. Patients with a history of gastrointestinal erosion, peptic ulcer disease, and current tobacco smokers and alcohol drinkers may be at higher risk of gastrointestinal injury.

MANAGEMENT: Caution is advised if vadadustat is prescribed to current tobacco smokers or alcohol drinkers. Patients should be advised to contact their physician if they develop potential signs and symptoms of gastrointestinal injury such as abdominal pain, hematemesis, trouble swallowing, chest or throat pain, and/or black, tarry stools.