Suggest Medicine For Osteoarthritis On Hip Bone

My mother is 67yrs old and was diagnosed to have osteoarthritis on her left hip bone. She has been told to take the following pills together and i was wondering if they are all necessary and what side effects will they have taken together.
1. PANTOCID
2. REJU NURON
3.REGENOVEX CAPSULES 4.OSTEOCERIN TABS
5.FREEFLEX FORTE
6. MYOLGIN CAPSULES