Does he really need medication. Past?

My husband (43 y old) has Pitiutary Aden'oma surgery 20 years ago (2004) , and after that, he has been taking the following medicines Rx- Prednisolone 5 Eltroxin 25 but over the past 5-6 years, he has been very irregular in taking these medications for the last couple of months. I think he almost stopped taking them. We do all the blood work every 7-8 months, and his reports are normal all the time. Only an eye doctor once prescribed an MRI (a year ago), and it was all good. So, I am curious if he really needs these meds. Every time we ask the doctor, he says meds are critical for him, but on the ground, it does not seem like that? And there are side effects like increased cholesterol because of the meds in the past? FINAL DIAGNOSIS PITUITARY ADENOMA Probable NON FUNCTIONAL S/P TNTS 2002/2004 S/P SRT 2004 PARTIAL HYPOPITUITARISM