They may also be able to prescribe you a Modalert 200 australia medicine called a stimulant, which can help you stay alert during the day. These medicines are usually taken as tablets every morning. A doctor will recommend the best dose for you, depending on your needs. They'll start you on a low dosage and adjust it over time to find the right level of strength for your individual symptoms. If you have an irregular heartbeat (arrhythmia), uncontrol high blood pressure or have had a heart attack, this Modvigil medicine may not be safe for you. It's also not recommend for pregnant or breastfeeding women, as it can cause harm to an infant.