Lots of side effects of medicines. Him?

My dad went through an angioplasty on 12th Jan and since he is facing lot of side effects of medicines. He almost every day feel nausea and get vomiting sensation but nothing comes out as he takes esomeprazole with domperidone twice in morning and evening. He also complains about lot of burning sensation in stomach after taking medication even with lifestyle changes. He started taking esomeprazole with domperidone but it doesn't seems working as it is just stopping vomit to come out and not working on sensation. We consulted his cardiologist but they wanted him to continue same set of medicines which are mexohar, bisoprolol, ticagrelor, clopidogrel, torsemide, eplerenone and atorvastatin along with insulin and metformin. Can anyone please suggest what further steps I should take as it has become very stressful for him to take medications. Also I would like to mention he had an emergency angioplasty. Is there anyway his vomiting can be controlled. Also can perinorm be given to him?