Some people should avoid modafinil, the active component in Modalert 200. Modafinil may raise blood pressure and heart rate, thus anyone with a history of cardiac problems, such as arrhythmias, excessive blood pressure, or coronary artery disease, should use it with caution. Additionally, because modafinil is processed by the liver, it is not advised for anyone with severe liver or re... https://www.smartfinil.net/product/modalert-200/