caffeinated

Short definition from Wiktionary

Adjective

1. 1
   Containing caffeine naturally (e.g., coffee, tea, and cacao) or as an additive (e.g., soft drinks, sports drinks, or energy drinks).
2. 2
   Overly peppy or energetic; stimulated by caffeine.

Verb

1. 1
   simple past and past participle of caffeinate