Enhancing wakefulness and cognitive performance is the main purpose of modafinil, which is often sold under the trade name Modalert 200 australia. Although most healthy individuals consider it harmless, several data indicate that it could affect circulation. Modafinil may raise blood pressure and heart rate, which may have an indirect effect on circulation, according to some studies. All people do not have these symptoms, however, and they are often moderate. People who already have cardiovascular disease should definitely speak with a doctor before using modafinil. As always, when using the product, keep an eye out for any strange symptoms.