Both armodafinil and modafinil are used to increase attention and encourage wakefulness, they differ somewhat. Armodafinil (e.g., Waklert) exclusively contains the active R-enantiomer, whereas modafinil Modalert 200 is a racemic combination of two enantiomers. Since armodafinil has a longer half-life and is frequently thought to be more effective, it may have a longer-lasting impact. Compared to modafinil, some users claim that armodafinil offers a more constant and seamless awake experience. For ailments like sleep apnea and narcolepsy, both work well. However, as both drugs have comparable advantages and possible drawbacks, the decision between them is based on personal preference and medical guidance.