Is it okay for me to smoke cannabis while on rivaroxaban? i'm being treated for a pulmonary embolism which was provoked due to me being hospitilised after renal failure.

No: Smoking (inhaling smoke, which is full of lung irritants and cancer-causing chemicals) of any kind is unhealthy. Cannabis is illegal under U.S. federal law, so one can be convicted of a crime. Having a conviction may have bad side effects, such as problems getting a new job or the inability to enter Canada for a vacation. Regardless, cannabis is not necessary for life.