Nothing: because a drug does work, if it is not taken
Now the the situation is compounded by lack of activity and exercise due to lock-downs, logistic issues, economic issues, and in some place medication shortages.
This is because the attention has diverted to COVID-19 and everything else has gone to the background.
Advice them on focusing heavily on their lifestyle habits and food they eat, those are the essential controls we can monitor currently and avoid cardio exercises for the time being if they have other predisposing conditions such as liver cirrhosis or diabetes.
And pray for a good vaccine, soon. (How about notification to your government representatives to do all they can, administratively and financially to encourage rapid development of a good vaccine, then rapid deployment to all people) Thank you.
Dear Amet, I would suggest you to reccommend to your patients with CV disease to keep their prescribed cardiac therapy and do not interrupt it unless a doctor´s suggestion. It´s necessary to do emphasis in do not stop the treatment with ACE inhibitors or ARBs according with the updated international institutions like NIH, for example. Of course, it´s imprescindible to keep another general requirements like social isolation, washing hands frequently, etc. Good luck.