A capsule shaped blue/white pill with the imprint S489 50 mg on the front is 50mg of Vyvanse (made by Shire US Inc). Vyvanse is a CNS stimulant that is used to treat attention-deficit/hyperactivity disorder; it is a branded version of the generic drug lisdexamfetamine.
Abuse of this drug may lead to psychological or physical dependence, however the risk is low. This prescription-only medication may pose a risk to an unborn fetus, and should be used only under a doctor's supervision.
The Financial Times is saying that Vyvanse may be more beneficial for ADHD than other existing options as it has a much lower potential for abuse.