Heart medication. Or any of them?

Hello Doctor, My father had complained of chest discomfort early this year, then after he was detected with high blood cholesterol ..he noticeably underwent a complete diet change and didn't complain of anything for the whole year. However, it's been a month now that he frequently has a bit of pinching kind of sensation in the centre of his heart. So he visited local cardiologist who then suggested following medicines... (below) after which he usually finds his BP relatively low and complains of nausea as well. When can be stop these medicines or any of them? P.S His cholesterol is perfectly fine as per his latest reports. And weight is 76 kgs; Height 180cm. Report attached below. Medicines are: Clopidogrel 75, Aspirin 75 mg, Atorvastatin 10 mg, calcium & Vitamin D3