Malegra 100, which contains sildenafil, is a medication primarily used to treat erectile dysfunction. While it is generally safe for many individuals, people with heart conditions should approach its use with caution. Malegra 100mg can cause a drop in blood pressure, which may be dangerous for individuals with certain heart conditions, such as those with low blood pressure, heart failure, or a recent history of heart attack or stroke. It's essential that individuals with heart problems consult a healthcare provider before using Malegra 100 to ensure its safety and avoid potential complications. The provider may recommend alternative treatments or closely monitor usage.