Is it safe to take buspiron 15mg twice a day And suboxone 8mg/2mg one film twice a day? I was prescribed the medications but read it can cause death?

Dosage OK, check MD. The dosages you mention are within appropriate limits. Side effect list on any opiate medication will list death as a possibility, don't get too alarmed. You need to check with your prescribing MD re interactions and tell him/her ALL meds and supplements you are taking. It is critical that you follow dosage directions EXACTLY with medications of this type. Good luck!