The safety of caffeine pills often depends on how much you take. High amounts of caffeine in a caffeine pill can cause symptoms like dizziness, irritability, nausea, and rapid or irregular heartbeat.

A novel placebo-controlled study has found daily caffeine consumption can significantly reduce the volume of gray matter in ...

Caffeine supplements are a convenient and accessible way to get a quick energy boost without the need for brewing a cup of coffee or tea. They come in various forms, such as pills, capsules ...

ST KILDA star Lenny Hayes says the use of caffeine tablets and sleeping pills is a non-issue in the AFL. Hayes said he used both on rare occasions, that their use was widespread in the AFL, and he ...