What’s the best fitness plan for a man who is taking prescription Rx and breathes heavily under exertion?

Client is taking Citalopram, Lamotrigine, Simvastatin, Ropinirole. For depression, bi-polar, cholesterol, and parkinsons. He wants to lose weight but when he exerts himself he gets so dizzy he has to sit down. Should we only work out with mind-body, only strength, or is it ok to push his cardio.