Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, heart disease (such as chest pain, heart attack), high blood pressure, blood clots, bleeding problems, blood vessel problems (such as an aneurysm or a tear/break in the aorta or other blood vessels), recent abdominal surgery, stomach/intestinal problems (such as ulcers, diverticular disease).

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using nintedanib. Nintedanib may harm an unborn baby. Your doctor should order a pregnancy test before you start this medication. Ask about reliable forms of birth control (such as condoms) while using this medication and for at least 3 months after stopping treatment. If you become pregnant, talk to your doctor right away about the risks and benefits of this medication.