Ascan Plus 2.6 mg Tablet 30's is used to treat Angina (heart-related chest pain). It contains Glyceryl Trinitrate, which works by relaxing the blood vessels and decreasing the oxygen demand the heart requires. As a result, it reduces heart workload and prevents attacks of Angina. Common side effects of Ascan Plus 2.6 mg Tablet 30's may include dry mouth, blurred vision, insomnia, headache, dizziness, weakness, heart palpitations, low blood pressure upon rising from a seated position, nausea and vomiting, sweating, and flushing (warm or red condition of your skin).