Does Taking Pain Killers Cause High Blood Pressure?

Hi my boyfriend just came from the doctor and they told him he had high blood preassure. The bottom number is 108. He has been taking various pain killer because a back pain. He has been taking Methocarbamol (2), Oxycodone (2), Diazepam (1), and Methylprednisolone. Does taking all the pills cause high blood preassure. He is 50 years old.