Drug Interaction Report

Food may affect the intestinal absorption of tamsulosin. You should take tamsulosin approximately one-half hour following the same meal each day to ensure steady absorption and blood levels of the drug.

Grapefruit juice may increase the blood levels and effects of certain medications such as cobimetinib. You may want to limit your consumption of grapefruit and grapefruit juice during treatment with cobimetinib. However, if you have been regularly consuming grapefruit or grapefruit juice with cobimetinib, do not alter the amounts of these products in your diet without first talking to your doctor or other healthcare professional. Contact your doctor if your condition changes or you experience increased side effects. Orange juice is not expected to interact.