Severe. These medicines may interact and cause very harmful effects and are usually not taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
How this interaction occurs is not known.
What might happen:
Using these medicines together may increase the risk of damage to your lungs.
What you should do about this interaction:
Let your healthcare professionals (e.g. doctor or pharmacist) know right away that you are taking these medicines together. Let your doctor know if you develop a cough or have any pain when you breathe.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.Reference:1.USFood and Drug Administration. FDA Drug Safety Communication: New Boxed Warning and Contraindication for Adcetris (brentuximab vedotin). available at: http://www.fda.gov/Drugs/DrugSafety/ucm287668.htm January 13, 2012.