My OB Dr Prescribed Me Flexaril To Ease The Pain

My OB Dr prescribed me Flexaril to ease the pain from my herniated disc while [[as he knew]] I was already on subutex from a previous opioid dependency. He says that they are ok to take in the same day, I'm just very careful nowadays with medications and their interactions. I don't mean to be cryptic, i just simply need to have a second opinion on whether or not these two meds can be taken together.

Thank you!