Patients with heart disease should not consume alcohol, especially those with severe heart conditions such as coronary heart disease, severe arrhythmias, and viral myocarditis. These patients especially should avoid alcohol as they need to use many medications during treatment. If they consume alcohol, the alcohol entering the body can chemically interact with some medications, leading to reduced efficacy, diminished effects, or causing side effects. Additionally, for these heart disease patients, consuming alcohol can increase the burden on the heart and exacerbate symptoms of heart disease.